Report of Head and Neck Cancer Registry of Japan. Clinical Statistics of Registered Patients, 2003

Transcription

1 Report of Head and Neck Cancer Registry of Japan Clinical Statistics of Registered Patients, 3 Japan Society for Head and Neck Cancer Cancer Registry Committee

2 Preface The Head and Neck Cancer Registry of Japan was founded in 98 by the Subcommittee for Head and Neck Cancer of the Japanese Joint Committee. Although its first purpose was to formulate Japanese proposals for the TNM classification based on collected data, it soon became apparent that this vast registry contributes greatly to the understanding of the statistics and treatments of head and neck cancer in Japan. One thousand one hundred and seventy-six patients treated in 979 were registered in the first registration which took place in 98. Since then the registration has been repeated every year. Although the annual number of registered patients had increased steadily until 99, it shifted to a constant decline afterwards because this registry was not supported by any societies and therefore its data were not totally public and were available only to researchers in the cooperating institutions. In, the Japan Society for Head and Neck Cancer decided to support the Head and Neck Cancer Registry to maintain the quality of its data and created the Cancer Registry Committee to renew the old-fashioned registration system. The first new registration took place in 3, registering,335 head and neck cancer patients treated in. This supplement is the report of the third year of the new registration. I would like to express my deepest appreciation to the Japan Society for Head and Neck Cancer for the academic and financial support. I would also like to thank Ms. Kazumi Oono for her help in the management of registration forms. Last but not least, I would like to express my gratitude to all the doctors in the participating institutions. I hope this English edition will provide valuable information in the field of head and neck oncology not only nationally but internationally. Unfortunately, the Act on the Protection of Personal Information, which was enforced on Apr., 5, has made cancer registration very difficult in Japan. Because the Head and Neck Cancer Registry of Japan is not supported by the Act, personal information accumulated in the Registry can be regarded as illegal. Governmental support on this issue has not yet been available. To cope with this situation, the Japan Society for Head and Neck Cancer has decided the suspension of the registration of patients treated in 4 and later. Although the duration of this suspension is not clear at this moment, I hope this problem will be solved as soon as possible. September 4, 7 Masahisa Saikawa, MD Chairperson Cancer Registry Committee, Japan Society for Head and Neck Cancer This work was supported by the Japan Society for Head and Neck Cancer and a Grant-in-Aid for Cancer Research from the Ministry of Health, Labour and Welfare, Japan. i

3 Cancer Registry Committee, Japan Society for Head and Neck Cancer Chairperson Members Masahisa Saikawa Hideki Chijiwa, Takashi Fujii, Yasushi Fujimoto, Hiroyuki Harada, and Seiichi Yoshimoto Secretariat Division of Head and Neck Surgery, National Cancer Center Hospital East 6-5- Kashiwanoha, Kashiwa, Chiba, Japan Phone: ext (Sep. 7) Data Collection All the member institutions of the Japan Society for Head and Neck Cancer were advised to participate in the registration. All the member institutions of the Japanese Society of Oral and Maxillofacial Surgeons were also advised to participate because the Society had decided to cooperate in the registration from this year. The secretariat sent registration forms to institutions which expressed their cooperation. The completed registration forms provide information regarding patients age and sex, tumor pathology, TNM classifications, site and size of the primary tumor and neck metastases, therapies (surgery, radiation, and chemotherapy), and prognosis. All registration forms returned by 34 institutions were thoroughly reviewed by head and neck oncologists, stored in a computerized data file, and analyzed in the secretariat. Registration was restricted to previously untreated cancer cases which had pathological confirmation and arose in the aero-digestive tract of the head and neck area, i.e. the oral cavity, larynx, hypopharynx, oropharynx, nasopharynx, nasal cavity or paranasal sinuses. Tumors arising in the cervical esophagus were excluded. Head and neck tumors were classified according to the General Rules for Clinical Studies on Head and Neck Cancer (The Third Edition, November, Japan Society for Head and Neck Cancer), which are based on the TNM Classification of Malignant Tumours (Fifth Edition, 997) of the International Union Against Cancer (UICC). For head and neck cancer patients treated in 3, 3,99 completed registration forms were returned to the secretariat, of which 8 were excluded (double registration 53, primary site not meeting the registration criteria 4, treated cases 6, pre-treatment unknown 5, pathology unknown ), making the total number of registered patients 3,9. ii

4 List of 34 Institutions which participated in the Registry in 3. Department of Otolaryngology-Head and Neck Surgery, Hokkaido University Graduate School of Medicine. Division of Oral & Maxillofacial Surgery, Department of Oral Pathobiological Science, Graduate School of Dental Medicine, Hokkaido University 3. Department of Oral Surgery, Department of Clinical Medical Science, Sapporo Medical University School of Medicine 4. Department of Oral and Maxillofacial Surgery, Asahikawa Medical College 5. Department of Dentistry and Oral Surgery, Kushiro Rosai Hospital 6. Department of Dentistry and Oral Surgery, Asahikawa City Hospital 7. Department of Dentistry and Oral Surgery, Hakodate Goryoukaku Hospital 8. Oral Surgery Section of Dental Department, Keiyukai Sapporo Hospital 9. Department of Dentistry and Oral Surgery, Teine Keijinkai Hospital. Department of Dentistry and Oral Surgery, Hirosaki University School of Medicine. Department of Dentistry and Oral Surgery, Iwate Prefectural Central Hospital. Division of Maxillofacial Surgery, Tohoku University Graduate School of Dentistry 3. Division of Oral Surgery, Tohoku University Graduate School of Dentistry 4. Division of Head and Neck Surgery, Miyagi Cancer Center Hospital 5. Division of Dentistry and Oral Surgery, Akita University School of Medicine 6. Department of Oral and Maxillofacial Surgery, Institute of Clinical Medicine, University of Tsukuba 7. Department of Dentistry and Oral Surgery, Okubo Hospital 8. Department of Dentistry and Oral Surgery, Tochigi National Hospital 9. Department of Oral and Maxillofacial Surgery, Dokkyo Medical University School of Medicine. Department of Stomatology and Maxillofacial Surgery, Subdivision of Oncology, Division of Biosystem Medicine, Course of Medical Sciences, Graduate School of Medicine, Gunma University Graduate School. Department of Head and Neck, Gunma Cancer Center. Department of Otorhinolaryngology, National Defense Medical College 3. Department of Oral and Maxillofacial Surgery, National Defense Medical College iii

5 4. Second Division of Oral and Maxillofacial Surgery, Department of Diagnostic and Therapeutic Sciences, Meikai University School of Dentistry 5. Department of Head and Neck Surgery, Saitama Cancer Center 6. Division of Otorhinolaryngology, Graduate School of Medicine, Chiba University 7. Division of Oral Surgery, Graduate School of Medicine, Chiba University 8. Department of Oral Surgery, Nihon University School of Dentistry at Matsudo 9. Department of Oral and Maxillofacial Surgery, Tokyo Dental College 3. Department of Dentistry and Oral Surgery, Tokyo Dental College Ichikawa General Hospital 3. Division of Head and Neck Surgery, Chiba Cancer Center Hospital 3. Department of Dentistry and Oral Surgery, Asahi Chuo Hospital 33. Department of Oral Surgery, Kameda Medical Center 34. Head and Neck Surgery Division, National Cancer Center Hospital 35. Department of Oral and Maxillofacial Surgery, Nihon University School of Dentistry 36. Department of Otolaryngology, Nippon Medical School 37. Department of Otorhinolaryngology-Head and Neck Surgery, Graduate School of Medicine, University of Tokyo 38. Department of Oral and Maxillofacial Surgery, Graduate School of Medicine, University of Tokyo 39. Maxillofacial Surgery, Department of Maxillofacial Reconstruction and Function, Division of Maxillofacial and Neck Reconstruction, Graduate School, Tokyo Medical and Dental University 4. Oral and Maxillofacial Surgery, Department of Oral Restitution, Division of Oral Health Sciences, Graduate School, Tokyo Medical and Dental University 4. Department of Otorhinolaryngology, School of Medicine, Keio University 4. Department of Oral and Maxillofacial Surgery, Tokyo Medical University 43. Department of Otolaryngology, Tokyo Women's Medical University 44. Department of Oral and Maxillofacial Surgery, Tokyo Women's Medical University 45. Department of Otorhinolaryngology, The Jikei University School of Medicine 46. Department of Dentistry, Tokyo Metropolitan Ohtsuka Hospital 47. Department of Dentistry and Oral Surgery, Kanto Medical Center NTT EC 48. Department of Dentistry and Oral Surgery, Tokyo Metropolitan Fuchu Hospital iv

6 49. Department of Oral and Maxillofacial Surgery, Yokohama City University 5. Department of Oral and Maxillofacial Surgery, Tokai University School of Medicine 5. First Department of Oral and Maxillofacial Surgery, Kanagawa Dental College 5. First Department of Oral and Maxillofacial Surgery, Tsurumi University School of Dental Medicine 53. Second Department of Oral and Maxillofacial Surgery, Tsurumi University School of Dental Medicine 54. Department of Dentistry and Oral Surgery, Kanto Rosai Hospital 55. Department of Dentistry and Oral Surgery, Yokohama Senin Hoken Hospital 56. Department of Dentistry and Oral Surgery, Yokohama Rosai Hospital 57. Division of Oral and Maxillofacial Surgery, Department of Oral Health Science, Course for Oral Life Science, Niigata Graduate School of Medical and Dental Sciences 58. Department of Oral and Maxillofacial Surgery II, The Nippon Dental University School of Life Dentistry at Niigata 59. Department of Dentistry and Oral Surgery, Tonami General Hospital 6. Department of Dentistry and Oral Surgery, Ishikawa Prefectural Central Hospital 6. Department of Otorhinolaryngology Head and Neck Surgery, University of Fukui Faculty of Medical Sciences 6. Division of Dentistry and Oral Surgery, Department of Sensory and Locomotor Medicine, University of Fukui Faculty of Medical Sciences 63. Department of Otolaryngology and Department of Oral Surgery, Yamanashi Prefectural Central Hospital 64. Department of Dental and Oral Surgery, Shinshu University School of Medicine 65. Department of Dentistry and Oral Surgery, Nagano Red Cross Hospital 66. Department of Dentistry and Oral Surgery, Iida Municipal Hospital 67. Department of Oral and Maxillofacial Sciences, Gifu University Graduate School of Medicine 68. Department of Oral and Maxillofacial Surgery I, Asahi University School of Dentistry 69. Department of Oral and Maxillofacial Surgery II, Asahi University School of Dentistry 7. Department of Dentistry and Oral Surgery, Gifu Prefectural Tajimi Hospital 7. Department of Dentistry and Oral Surgery, Ogaki Municipal Hospital 7. Department of Dentistry and Oral Surgery, Tajimi Municipal Hospital v

7 73. Department of Oral and Maxillofacial Surgery, Hamamatsu University School of Medicine 74. Department of Oral Surgery, Shimada Municipal Hospital 75. Department of Dentistry and Oral Surgery, National Hospital Organization Nagoya Medical Center 76. First Department of Oral and Maxillofacial Surgery, School of Dentistry, Aichi-Gakuin University 77. Second Department of Oral and Maxillofacial Surgery, School of Dentistry, Aichi-Gakuin University 78. Department of Head and Neck Surgery, Aichi Cancer Center 79. Department of Dentistry and Oral Surgery, Toyohashi Municipal Hospital 8. Department of Dentistry and Oral Surgery, Tosei General Hospital 8. Department of Dentistry and Oral Surgery, Kasugai Municipal Hospital 8. Department of Dentistry and Oral Surgery, Kariya Toyota General Hospital 83. Department of Dentistry and Oral Surgery, Nagoya Ekisaikai Hospital 84. Department of Dentistry and Oral Surgery, Jouhoku Municipal Hospital, City of Nagoya 85. Department of Dentistry and Oral Surgery, Ise Municipal Hospital 86. Department of Oral and Maxillofacial Surgery, Graduate School of Medicine, Kyoto University 87. Department of Dentistry and Oral Surgery, Rakuwakai Otowa Hospital 88. Department of Otolaryngology, Head and Neck Surgery, Kansai Medical University 89. Department of Oral Surgery, Osaka Medical College 9. First Department of Oral and Maxillofacial Surgery, Osaka University Graduate School of Dentistry 9. Second Department of Oral and Maxillofacial Surgery, Osaka University Graduate School of Dentistry 9. Department of Otolaryngology, Osaka Medical Center for Cancer and Cardiovascular Diseases 93. Division of Otolaryngology-Head and Neck Surgery, Osaka General Medical Center 94. Department of Dentistry and Oral Surgery, Sakai Municipal Hospital 95. Department of Dentistry and Oral Surgery, Ikeda Municipal Hospital 96. Department of Dentistry and Oral Surgery, Osaka Police Hospital 97. Department of Otorhinolaryngology, Osaka Koseinenkin Hospital vi

8 98. Department of Oral Surgery, Osaka City General Hospital 99. Department of Dentistry and Oral Surgery, Saiseikai Senri Hospital. Department of Oral and Maxillofacial Surgery, Hyogo College of Medicine. Department of Head and Neck Surgery, Hyogo Medical Center for Adults. Department of Oral and Maxillofacial Surgery, Kobe City Medical Center General Hospital 3. Department of Dentistry and Oral Surgery, Himeji Red Cross Hospital 4. Department of Oral Surgery, Kinki Central Hospital 5. Department of Otorhinolaryngology, Yoka Hospital 6. Department of Dentistry and Oral Surgery, Itami City Hospital 7. Department of Dentistry and Oral Surgery, Nishi-Kobe Medical Center 8. Department of Otorhinolaryngology, Nara Medical University 9. Department of Oral and Maxillofacial Surgery, Nara Medical University. Department of Dentistry and Oral Surgery, Kinkidaigakuigakubu Nara Hospital. Department of Otolaryngology-Head and Neck Surgery, Wakayama Medical University. Division of Oral and Maxillofacial Biopathological Surgery, Department of Medicine of Sensory and Motor Organs, Tottori University Faculty of Medicine 3. Department of Oral and Maxillofacial Reconstructive Surgery, Okayama University Graduate School of Medicine and Dentistry 4. Department of Oral and Maxillofacial Surgery and Biopathology, Okayama University Graduate School of Medicine and Dentistry 5. Department of Oral and Maxillofacial Surgery, Division of Cervico-Gnathostomatology, Graduate School of Biomedical Sciences, Hiroshima University 6. Department of Oral and Maxillofacial Surgery, Yamaguchi University School of Medicine 7. Department of Oral and Maxillofacial Surgery, Division of Medico-Dental Dynamics and Reconstruction, Subdivision of Medical Science for Oral and Maxillofacial Regeneration, The University of Tokushima School of Dentistry 8. Department of Therapeutic Regulation for Oral Tumors, Division of Integrated Sciences of Translational Research, Subdivision of Molecular Oral Medicine, The University of Tokushima School of Dentistry 9. Department of Otorhinolaryngology, Faculty of Medicine, Kagawa University. Department of Oral and Maxillofacial Surgery, Faculty of Medicine, Kagawa University vii

9 . Department of Oral and Maxillofacial Surgery, Department of Organ Function Regenerative and Reconstructive Surgery, Ehime University Graduate School of Medicine. Department of Dentistry and Oral Surgery, Kochi Health Sciences Center 3. Department of Dentistry and Oral Surgery, National Hospital Organization Kyushu Medical Center 4. Section of Oral and Maxillofacial Surgery, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University 5. Department of Otolaryngology-Head and Neck Surgery, Kurume University School of Medicine 6. Dental and Oral Medical Center, Kurume University School of Medicine 7. First Department of Oral and Maxillofacial Surgery, Kyushu Dental College 8. Department of Dentistry and Oral Surgery, Tagawa Municipal Hospital 9. Department of Otolaryngology-Head and Neck Surgery, Unit of Translational Medicine, Nagasaki University Graduate School of Biomedical Sciences 3. Division of Oral and Maxillofacial Surgery, Department of Developmental and Reconstructive Medicine, Course of Medical and Dental Sciences, Nagasaki University Graduate School of Biomedical Sciences 3. Division of Regenerative Oral Surgery, Unit of Translational Medicine, Nagasaki University Graduate School of Biomedical Sciences 3. Department of Dentistry and Oral Surgery, Miyazaki Prefectural Miyazaki Hospital 33. Department of Maxillofacial Diagnostic and Surgical Science, Field of Oral and Maxillofacial Rehabilitation, Advanced Therapeutics Course, Kagoshima University Graduate School of Medical and Dental Sciences 34. Division of Oral and Maxillofacial Functional Rehabilitation, Department of Clinical Neuroscience, Faculty of Medicine, University of the Ryukyus viii

10 Contents List of 34 Institutions which participated in the Registry in iii Cases Oral Cavity Larynx Hypopharynx Oropharynx Nasopharynx Nasal Cavity and Paranasal Sinuses Excluding the Maxillary Sinus Maxillary Sinus ix

11 Cases (3) 39 Cases

12 Head and Neck Carcinoma Cases Primary Site Site ) Oral cavity ) Larynx 3) Hypopharynx 4) Oropharynx 5) Nasopharynx 6) Nasal cavity, etc. 7) Maxillary sinus Number of patients 9 ( 59.%) 54 ( 5.7%) 38 ( 9.6%) 69 ( 8.4%) 7 (.%) 49 (.5%) 7 ( 3.6%) 39 (.%) Nasal cavity, etc. : nasal cavity and paranasal sinuses (excluding the maxillary sinus). Age Distribution by Gender Age Unknown Male Female Unknown

13 3 Head and Neck Carcinoma Cases Histological Distribution by Primary Site () () (3) (4) (5) (6) (7) Histologic type Nasal Maxillary Oral Hypopharynpharynpharynx Oro- Naso- Larynx cavity, cavity etc. sinus Neoplasm, malig Carcinoma, NOS 5 Ca., undiff., NOS Spindle cell ca., NOS Small cell ca., NOS Verrucous ca., NOS 49 5 Papillary S.C.C. S.C.C. in situ, NOS 5 6 S.C.C., NOS S.C.C., kerat., NOS S.C.C., large cell, nonkerat. S.C.C., small cell, nonkerat. S.C.C., spindle cell 6 8 S.C.C. in situ with quest. stromal invasion Basaloid S.C.C. Adenocarcinoma, NOS 8 3 Adenoid cystic ca Mucoepidermoid ca Acinar cell ca. Adenosquamous ca. Malig. melanoma, NOS 6 8 Blue nevus, malig. Fibrosarcoma, NOS Liposarcoma, NOS Rhabdomyosarcoma, NOS Mixed tumor, malig., NOS Hemangiosarcoma Osteosarcoma, NOS 3 Ewing sarcoma Esthesioneuroblastoma Malig. lymphoma, NOS Nasal cavity, etc. : nasal cavity and paranasal sinuses (excluding the maxillary sinus). Malig., malig.: malignant. Ca., ca.: carcinoma. undiff.: undifferentiated. S.C.C.: squamous cell carcinoma. kerat.: keratinizing. nonkerat.: nonkeratinizing. quest.: questionable.

14 4 Head and Neck Carcinoma Cases Histological Distribution by Primary Site (Male) () () (3) (4) (5) (6) (7) Histologic type Nasal Maxillary Oral Hypopharynpharynpharynx Oro- Naso- Larynx cavity, cavity etc. sinus Neoplasm, malig Carcinoma, NOS 3 8 Ca., undiff., NOS Spindle cell ca., NOS Small cell ca., NOS Verrucous ca., NOS Papillary S.C.C. S.C.C. in situ, NOS 4 5 S.C.C., NOS S.C.C., kerat., NOS S.C.C., large cell, nonkerat. S.C.C., small cell, 5 nonkerat. S.C.C., spindle cell 5 7 S.C.C. in situ with quest. stromal invasion Basaloid S.C.C. Adenocarcinoma, NOS 9 Adenoid cystic ca Mucoepidermoid ca. 3 5 Acinar cell ca. Adenosquamous ca. Malig. melanoma, NOS 4 5 Blue nevus, malig. Fibrosarcoma, NOS Liposarcoma, NOS Rhabdomyosarcoma, NOS Mixed tumor, malig., NOS Hemangiosarcoma Osteosarcoma, NOS Ewing sarcoma Esthesioneuroblastoma Malig. lymphoma, NOS Nasal cavity, etc. : nasal cavity and paranasal sinuses (excluding the maxillary sinus). Malig., malig.: malignant. Ca., ca.: carcinoma. undiff.: undifferentiated. S.C.C.: squamous cell carcinoma. kerat.: keratinizing. nonkerat.: nonkeratinizing. quest.: questionable.

15 5 Head and Neck Carcinoma Cases Histological Distribution by Primary Site (Female) () () (3) (4) (5) (6) (7) Histologic type Nasal Maxillary Oral Hypopharynpharynpharynx Oro- Naso- Larynx cavity, cavity etc. sinus Neoplasm, malig Carcinoma, NOS 4 Ca., undiff., NOS 4 7 Spindle cell ca., NOS Small cell ca., NOS Verrucous ca., NOS 9 3 Papillary S.C.C. S.C.C. in situ, NOS 9 S.C.C., NOS S.C.C., kerat., NOS S.C.C., large cell, 3 9 nonkerat. S.C.C., small cell, 4 5 nonkerat. S.C.C., spindle cell S.C.C. in situ with quest. stromal invasion Basaloid S.C.C. Adenocarcinoma, NOS 9 Adenoid cystic ca Mucoepidermoid ca. 6 9 Acinar cell ca. Adenosquamous ca. Malig. melanoma, NOS Blue nevus, malig. Fibrosarcoma, NOS Liposarcoma, NOS Rhabdomyosarcoma, NOS Mixed tumor, malig., NOS Hemangiosarcoma Osteosarcoma, NOS Ewing sarcoma Esthesioneuroblastoma Malig. lymphoma, NOS Nasal cavity, etc. : nasal cavity and paranasal sinuses (excluding the maxillary sinus). Malig., malig.: malignant. Ca., ca.: carcinoma. undiff.: undifferentiated. S.C.C.: squamous cell carcinoma. kerat.: keratinizing. nonkerat.: nonkeratinizing. quest.: questionable.

16 6 Head and Neck Carcinoma Cases T and N Status N N N Na Nb Nc N3 NX N- T Tis T T T3 T4 TX T T-: T classification not defined. N-: N classification not defined. T and N Status (M Cases) N N N Na Nb Nc N3 NX N- T Tis T T T T TX 5 T T-: T classification not defined. N-: N classification not defined.

17 7 Head and Neck Carcinoma Cases T and N Status (M Cases) N N N Na Nb Nc N3 NX N- T Tis T T T T4 TX T T-: T classification not defined. N-: N classification not defined. T and N Status (MX Cases) N N N Na Nb Nc N3 NX N- T Tis T 4 3 T T T TX 3 5 T T-: T classification not defined. N-: N classification not defined.

18 8 Head and Neck Carcinoma Cases Treatment Method for the Primary Lesion by Primary Site () () (3) (4) (5) (6) (7) Treatment method Oral cavity Larynx Nasal cavity, etc. Oropharynx Nasopharynx Hypopharynx Maxillary sinus Surgery ) Without ) With ) Unknown Radiotherapy ) Without ) With ) Unknown 4 3 Chemotherapy ) Without ) With ) Unknown Nasal cavity, etc. : nasal cavity and paranasal sinuses (excluding the maxillary sinus). Treatment Method for the Cervical Lymph Nodes by Primary Site () () (3) (4) (5) (6) (7) Treatment method Oral cavity Larynx Hypopharynx Oropharynx Nasopharynx Nasal cavity, etc. Maxillary sinus Surgery ) Without ) With ) Unknown Radiotherapy ) Without ) With ) Unknown Chemotherapy ) Without ) With ) Unknown Nasal cavity, etc. : nasal cavity and paranasal sinuses (excluding the maxillary sinus).

19 9 Sequence of treatment methods Head and Neck Carcinoma Cases Sequence of Treatment Methods for the Primary Lesion by Primary Site () () (3) (4) (5) (6) Oral cavity Larynx Hypopharynx Oropharynx Nasopharynx etc. No treatment A) Surg. alone B) Rad. alone F) (Rad.+Chem.) CA) Chem.->Surg FA) (Rad.+Chem.)->Surg AB) Surg.->Rad AC) Surg.->Chem BA) Rad.->Surg CB) Chem.->Rad C) Chem. alone AF) Surg.->(Rad.+Chem.) CAB) Chem.->Surg.->Rad CAC) Chem.->Surg.->Chem. 7 3 ABC) Surg.->Rad.->Chem BC) Rad.->Chem FC) (Rad.+Chem.)->Chem CF) Chem.->(Rad.+Chem.) CBA) Chem.->Rad.->Surg. 4 8 G) (Surg.+Rad.+Chem.) 7 8 Others Unknown Nasal cavity, etc. : nasal cavity and paranasal sinuses (excluding the maxillary sinus). Surg.: surgery. Rad.: radiotherapy. Chem.: chemotherapy. Treatment methods in parentheses were given concurrently. Nasal cavity, (7) Maxillary sinus

20 Surgical method Head and Neck Carcinoma Cases Surgical Method for the Primary Lesion by Primary Site () () (3) (4) Oral cavity Larynx etc. H) No surgery A) Partial glossectomy E) Partial maxillectomy A) Hemiglossectomy 4 6 H4) Resection of the buccal mucosa H) Resection of the floor of mouth F3) Segmental mandibulectomy 8 8 F) Marginal mandibulectomy C4) laryngectomy C9) Laryngectomy, other type A3) Subtotal glossectomy DC4H6) Pharyngolaryngoesophagectomy E9) Maxillectomy, other type E3) maxillectomy 6 7 D) Partial hypopharyngectomy 6 6 E) Subtotal maxillectomy 5 5 H3) Resection of the lower gingiva B3) Unilateral resection of the 8 9 lateral wall of the oropharynx DC4) pharyngolaryngectomy 7 8 H9)+ Others Unknown Nasal cavity, etc. : nasal cavity and paranasal sinuses (excluding the maxillary sinus). (5) Hypopharynx Oropharynx Nasopharynx (6) Nasal cavity, (7) Maxillary sinus

21 Head and Neck Carcinoma Cases Neck Dissection on the Ipsilateral Side by Primary Site () () (3) (4) (5) (6) (7) Neck dissection Oral cavity Larynx Nasal cavity, etc. Hypopharynx Oropharynx Nasopharynx Maxillary sinus ) No N.D ) Radical N.D ) Conservative N.D. 3) Upper N.D ) Partial N.D ) Enucleation 6 8) Others 3 3 9) Unknown Nasal cavity, etc. : nasal cavity and paranasal sinuses (excluding the maxillary sinus). N.D.: neck dissection. Neck Dissection on the Contralateral Side by Primary Site () () (3) (4) (5) (6) (7) Neck dissection Oral cavity Larynx Nasal cavity, etc. Hypopharynx Oropharynx Nasopharynx Maxillary sinus ) No N.D ) Radical N.D ) Conservative N.D. 3) Upper N.D ) Partial N.D ) Enucleation 8 8) Others 9) Unknown Nasal cavity, etc. : nasal cavity and paranasal sinuses (excluding the maxillary sinus). N.D.: neck dissection.

22 Reconstructive surgery Head and Neck Carcinoma Cases Reconstructive Surgery by Primary Site () () (3) (4) (5) (6) Oral cavity Larynx Nasopharynx Hypopharynx Oropharynx Nasal cavity, etc. ) No reconstruction D) Free RA MC flap C) Free FA flap ) Skin graft 9 3 B) Free jejunal flap E) Free anterolateral thigh flap ) PM MC flap ) Local skin flap C) Free FA flap + skin graft 9 3 G) Free fibular OC flap 4) DP flap 4 3) Mucosal flap F) Free scapular OC flap 8 9 D8) Free RA MC flap + others 5 6 4) DP flap + skin graft 4 5 8)+ Others ) Unknown Nasal cavity, etc. : nasal cavity and paranasal sinuses (excluding the maxillary sinus). RA: rectus abdominis. MC: musculocutaneous. FA: forearm. PM: pectoralis major. OC: osteocutaneous. DP: deltopectoral. (7) Maxillary sinus

23 3 Type of radiotherapy Head and Neck Carcinoma Cases Oral cavity Radiotherapy by Primary Site () () (3) (4) Larynx Hypopharynx Oropharynx Nasopharynx (6) Nasal cavity, etc. Maxillary sinus ) No radiotherapy ) X-ray ) 6 Co γ-ray ) Electron beam ) X-ray + electron beam ) HDR B.T. with 6 Co D) LDR B.T. with 98 Au 8 8 B) LDR B.T. with 37 Cs 6 7 4) X-ray + Proton beam 3 6 6) HDR B.T. with 9 Ir 4 5 B) LDR B.T. with 37 Cs + X-ray 5 5 D) X-ray + LDR B.T. with 98 Au 4 D) LDR B.T. with 98 Au + X-ray 4 4 ) X-ray + 6 Co γ-ray 3 3 8)+ Others 6 9) Unknown Nasal cavity, etc. : nasal cavity and paranasal sinuses (excluding the maxillary sinus). HDR: high dose rate. B.T.: brachytherapy. LDR: low dose rate. (5) (7)

24 4 Route of Administration Oral cavity Head and Neck Carcinoma Cases Chemotherapy by Primary Site () () (3) (4) (5) (6) Larynx Nasopharynx Hypopharynx Oropharynx ) No chemotherapy ) Intravenous ) Intraarterial ) Oral ) Others ) Unknown Nasal cavity, etc. : nasal cavity and paranasal sinuses (excluding the maxillary sinus). Nasal cavity, etc. (7) Maxillary sinus

25 5 Oral Cavity (3) 9 Cases

26 6 Carcinoma of the Oral Cavity Cases Subsite Subsite ) Lip ) Buccal mucosa 3) Retromolar area 4) Lower gingiva 5) Upper gingiva 6) Hard palate 7) Floor of mouth 8) Tongue 9) Oral cavity, NOS Number of patients 7 (.9%) 54 ( 8.%) (.%) 333 ( 7.5%) 6 (.9%) 63 ( 3.3%) 89 ( 9.9%) 897 ( 47.%) (.%) 9 (.%)

27 7 Carcinoma of the Oral Cavity Cases Age Distribution by Gender Age Unknown Male Female Unknown Carcinoma of the Lip Age Distribution by Gender Age Unknown Male Female Unknown

28 8 Carcinoma of the Oral Cavity Cases Carcinoma of the Buccal Mucosa Age Distribution by Gender Age Unknown Male Female Unknown Carcinoma of the Retromolar Area Age Distribution by Gender Age Unknown Male Female 3 Unknown 9 5

29 9 Carcinoma of the Oral Cavity Cases Carcinoma of the Lower Gingiva Age Distribution by Gender Age Unknown Male Female Unknown Carcinoma of the Upper Gingiva Age Distribution by Gender Age Unknown Male Female Unknown

30 Carcinoma of the Oral Cavity Cases Carcinoma of the Hard Palate Age Distribution by Gender Age Unknown Male Female Unknown Carcinoma of the Floor of Mouth Age Distribution by Gender Age Unknown Male Female 8 43 Unknown

31 Carcinoma of the Oral Cavity Cases Carcinoma of the Tongue Age Distribution by Gender Age Unknown Male Female Unknown Carcinoma of the Oral Cavity, NOS Age Distribution by Gender Age Unknown Male Female Unknown

32 Histologic type Carcinoma of the Oral Cavity Cases Histological Distribution by Subsite () () (3) (4) Retromolar Lip Buccal mucosa Lower gingiva (7) (8) Floor of Tongue area mouth NOS Neoplasm, malig. 4 3 Carcinoma, NOS 5 Ca., undiff., NOS 4 6 Spindle cell ca., NOS Verrucous ca., NOS Papillary S.C.C. S.C.C. in situ, NOS S.C.C., NOS S.C.C., kerat., NOS S.C.C., large cell, nonkerat. 4 8 S.C.C., small cell, nonkerat S.C.C., spindle cell 6 S.C.C. in situ with quest. stromal inv. Adenocarcinoma, NOS Adenoid cystic ca Mucoepidermoid ca Acinar cell ca. Adenosquamous ca. Malig. melanoma, NOS Liposarcoma, NOS Mixed tumor, malig., NOS Hemangiosarcoma Osteosarcoma, NOS Ewing sarcoma Malig. lymphoma, NOS Malig., malig.: malignant. Ca., ca.: carcinoma. undiff.: undifferentiated. S.C.C.: squamous cell carcinoma. kerat.: keratinizing. nonkerat.: nonkeratinizing. quest.: questionable. inv.: invasion. (5) Upper gingiva (6) Hard palate (9) Oral cavity,

33 3 Carcinoma of the Oral Cavity Cases T and N Status N N N Na Nb Nc N3 NX N- T Tis 8 8 T 435 () () 6 5 () 47 T 54 () 8 (3) () 3 78 T3 7 () 44 () () 4 53 T4 35 (3) 63 () 6 (7) 68 (5) 6 () 3 38 TX 3 5 T M: 3 cases. Numbers in parentheses indicate numbers of M cases. T-: T classification not defined. N-: N classification not defined. Carcinoma of the Lip T and N Status N N N Na Nb Nc N3 NX N- T Tis T 7 8 T 5 7 T3 T4 TX T M: case. T-: T classification not defined. N-: N classification not defined.

34 4 Carcinoma of the Oral Cavity Cases Carcinoma of the Buccal Mucosa T and N Status N N N Na Nb Nc N3 NX N- T Tis T 4 * * * 9 T T3 3 9 T4 * 6 5 * 3 6 TX T M: 5 cases. Each * signifies one M case. T-: T classification not defined. N-: N classification not defined. Carcinoma of the Retromolar Area T and N Status N N N Na Nb Nc N3 NX N- T Tis T T 7 T3 T4 3 7 TX T- 3 6 M: case. T-: T classification not defined. N-: N classification not defined.

35 5 Carcinoma of the Oral Cavity Cases Carcinoma of the Lower Gingiva T and N Status N N N Na Nb Nc N3 NX N- T Tis T T 69 8 * T3 T * 9 * 7 48 *** * TX T M: 7 cases. Each * signifies one M case. T-: T classification not defined. N-: N classification not defined. Carcinoma of the Upper Gingiva T and N Status N N N Na Nb Nc N3 NX N- T Tis T 3 35 T T3 6 ** T * * 74 TX T M: 4 cases. Each * signifies one M case. T-: T classification not defined. N-: N classification not defined.

36 6 Carcinoma of the Oral Cavity Cases Carcinoma of the Hard Palate T and N Status N N N Na Nb Nc N3 NX N- T Tis T 3 T 3 T3 T4 * * 5 TX T M: cases. Each * signifies one M case. T-: T classification not defined. N-: N classification not defined. Carcinoma of the Floor of Mouth T and N Status N N N Na Nb Nc N3 NX N- T Tis T T T T4 9 * 7 8 * 7 * 44 TX T M: 3 cases. Each * signifies one M case. T-: T classification not defined. N-: N classification not defined.

37 7 Carcinoma of the Oral Cavity Cases Carcinoma of the Tongue T and N Status N N N Na Nb Nc N3 NX N- T Tis 7 7 T T 48 * 6 *** 5 * T * 33 T4 8 * 6 ** 3 7 TX 3 T M: 9 cases. Each * signifies one M case. T-: T classification not defined. N-: N classification not defined. Carcinoma of the Oral Cavity, NOS T and N Status N N N Na Nb Nc N3 NX N- T Tis T T T3 T4 TX T- M: case. T-: T classification not defined. N-: N classification not defined.

38 8 Carcinoma of the Oral Cavity Cases Treatment Method for the Primary Lesion by Subsite () () (3) (4) (5) (6) (7) (8) (9) Treatment method Lip Buccal mucosa Retromolar area Lower gingiva Upper gingiva Hard palate Floor of mouth Tongue Oral cavity, NOS Surgery ) Without ) With ) Unknown Radiotherapy ) Without ) With ) Unknown 4 Chemotherapy ) Without ) With ) Unknown Treatment Method for the Cervical Lymph Nodes by Subsite () () (3) (4) (5) (6) (7) (8) (9) Treatment method Lip Buccal mucosa Retromolar area Lower gingiva Upper gingiva Hard palate Floor of mouth Tongue Oral cavity, NOS Surgery ) Without ) With ) Unknown 5 Radiotherapy ) Without ) With ) Unknown Chemotherapy ) Without ) With ) Unknown

39 9 Sequence of treatment methods Carcinoma of the Oral Cavity Cases Sequence of Treatment Methods for the Primary Lesion by Subsite () () (3) (4) (5) (6) (7) (8) (9) Retromolar Floor Lip of Tongue Buccal mucosa Lower gingiva Upper gingiva Hard palate area mouth NOS No treatment A) Surg. alone CA) Chem.->Surg FA) (Rad.+Chem.)->Surg AC) Surg.->Chem F) (Rad.+Chem.) B) Rad. alone AB) Surg.->Rad BA) Rad.->Surg C) Chem. alone CAB) Chem.->Surg.->Rad CAC) Chem.->Surg.->Chem AF) Surg.->(Rad.+Chem.) CB) Chem.->Rad FC) (Rad.+Chem.)->Chem ABC) Surg.->Rad.->Chem. 5 3 CBA) Chem.->Rad.->Surg. 3 3 FAC) (Rad.+Chem.)->Surg.->Chem. 5 3 G) (Surg.+Rad.+Chem.) 4 BAC) Rad.->Surg.->Chem. 3 8 Others Unknown Surg.: surgery. Chem.: chemotherapy. Rad.: radiotherapy. Treatment methods in parentheses were given concurrently. Oral cavity,

40 3 Surgical method area mouth NOS H) No surgery A) Partial glossectomy E) Partial maxillectomy A) Hemiglossectomy 4 4 H4) Resection of the buccal mucosa H) Resection of the floor of mouth 8 83 F3) Segmental mandibulectomy 77 8 F) Marginal mandibulectomy A3) Subtotal glossectomy H3) Resection of the lower gingiva 8 E) Subtotal maxillectomy 3 5 E9) Maxillectomy, other type F4) Hemimandibulectomy 5 5 H) Resection of the lip 3 5 HF) Resection of the floor of mouth 5 5 with marginal mandibulectomy H3F) Resection of the lower gingiva with marginal mandibulectomy H9)+ Others Unknown Carcinoma of the Oral Cavity Cases Surgical Method for the Primary Lesion by Subsite () () (3) (4) (5) (6) Lip Buccal mucosa Retromolar Lower gingiva Upper gingiva Hard palate (7) (8) Floor of Tongue (9) Oral cavity,

41 3 Carcinoma of the Oral Cavity Cases Neck Dissection on the Ipsilateral Side by Subsite () () (3) (4) (5) (6) (7) (8) (9) Neck dissection Lip Buccal mucosa Retromolar area Lower gingiva Upper gingiva Hard palate Floor of mouth Tongue Oral cavity, NOS ) No N.D ) Radical N.D. ) Conservative N.D. 3) Upper N.D. 4) Partial N.D. 5) Enucleation ) Others 3 9) Unknown N.D.: neck dissection. Neck Dissection on the Contralateral Side by Subsite Neck dissection () () (3) (4) (5) (6) (7) (8) (9) Lip Buccal mucosa ) No N.D ) Radical N.D. ) Conservative N.D. 3) Upper N.D. 4) Partial 4 6 N.D. 5) Enucleation 3 8 8) Others 9) Unknown Retromolar area Lower gingiva Upper gingiva Hard palate Floor of mouth Tongue Oral cavity, NOS N.D.: neck dissection.

42 3 Reconstructive surgery () () (3) (4) (5) (6) (7) (8) (9) Lip Carcinoma of the Oral Cavity Cases Reconstructive Surgery by Subsite Buccal mucosa Retromolar area Lower gingiva Upper gingiva Hard palate ) No reconstruction ) Skin graft C) Free FA flap D) Free RA MC flap 7 59 E) Free anterolateral thigh flap ) PM MC flap C) Free FA flap + skin graft ) Local skin flap G) Free fibular OC flap 9 4) DP flap 5 4 3) Mucosal flap 3 F) Free scapular OC flap 7 8 D8) Free RA MC flap + others 5 4) DP flap + skin graft 3 4 B) Free jejunal flap 3 4 6) LD MC flap 3 8)+ Others ) Unknown Floor of mouth Tongue FA: forearm. RA: rectus abdominis. MC: musculocutaneous. PM: pectoralis major. OC: osteocutaneous. DP: deltopectoral. LD: latissimus dorsi. Oral cavity, NOS

43 33 Type of radiotherapy () () (3) (4) (5) (6) Lip Carcinoma of the Oral Cavity Cases Radiotherapy by Subsite Buccal mucosa Retromolar Lower gingiva Upper gingiva Hard palate (7) (8) area mouth NOS ) No radiotherapy ) X-ray ) 6 Co γ-ray ) Electron beam ) X-ray + electron beam 8 4 7) HDR B.T. with 6 Co 4 D) LDR B.T. with 98 Au B) LDR B.T. with 37 Cs 6 6 B) LDR B.T. with 37 Cs + X-ray 4 5 6) HDR B.T. with 9 Ir 4 4 D) LDR B.T. with 98 Au + X-ray 4 4 4) X-ray + Proton beam 3 B) X-ray + LDR B.T. with 37 Cs D) X-ray + LDR B.T. with 98 Au 3D) Electron beam + LDR B.T. with 98 Au 8)+ Others 5 9) Unknown Tongue HDR: high dose rate. B.T.: brachytherapy. LDR: low dose rate. Floor of (9) Oral cavity,

44 34 Route of Administration ) No chemotherapy ) Intravenous ) Intraarterial ) Oral ) Others ) Unknown Carcinoma of the Oral Cavity Cases Chemotherapy by Subsite () () (3) (4) (5) (6) (7) (8) (9) Lip Buccal mucosa Retromolar area Lower gingiva Upper gingiva Hard palate Floor of mouth Tongue Oral cavity, NOS

45 35 Larynx (3) 54 Cases

46 36 Carcinoma of the Larynx Cases Subsite Subsite Glottis Supraglottis Subglottis Larynx, NOS Number of patients ( 7.4%) ( 6.%) (.%) 6 (.%) 54 (.%) Age Distribution by Gender Age Unknown Male Female Unknown

47 37 Carcinoma of the Larynx Cases Glottic Carcinoma Age Distribution by Gender Age Unknown Male Female Unknown Supraglottic Carcinoma Age Distribution by Gender Age Unknown Male Female Unknown

48 38 Carcinoma of the Larynx Cases Subglottic Carcinoma Age Distribution by Gender Age Unknown Male Female Unknown Carcinoma of the Larynx, NOS Age Distribution by Gender Age Unknown Male Female 5 Unknown 3 6

49 39 Histologic type Neoplasm, malig. Ca., undiff., NOS Spindle cell ca., NOS S.C.C. in situ, NOS S.C.C., NOS S.C.C., kerat., NOS S.C.C., large cell, nonkerat. S.C.C., small cell, nonkerat. Basaloid S.C.C. Carcinoma of the Larynx Cases Histological Distribution by Subsite Glottis Supraglottis Subglottis Larynx, NOS (C3.) (C3.) (C3.) (C3.9) Ca., ca.: carcinoma. S.C.C.: squamous cell carcinoma. nonkerat.: nonkeratinizing. malig.: malignant. undiff.: undifferentiated. kerat.: keratinizing. T and N Status N N N Na Nb Nc N3 NX N- T * Tis 3 3 T 99 4 T 44 7 * 7 8 T3 49 * 3 5 * 9 77 T * 37 TX T M: 5 cases. Each * signifies one M case. T-: T classification not defined. N-: N classification not defined.

50 4 Carcinoma of the Larynx Cases Glottic Carcinoma T and N Status N N N Na Nb Nc N3 NX N- T Tis * 3 3 T Ta Tb 39 4 T 9 3 T3 34 * 5 44 T4 3 8 TX T M: cases. Each * signifies one M case. T-: T classification not defined. N-: N classification not defined. Supraglottic Carcinoma T and N Status N N N Na Nb Nc N3 NX N- T Tis T 4 T * T * 7 3 T4 5 * 3 TX T M: 3 cases. Each * signifies one M case. T-: T classification not defined. N-: N classification not defined.

51 4 Carcinoma of the Larynx Cases Subglottic Carcinoma T and N Status N N N Na Nb Nc N3 NX N- T Tis T T 7 7 T3 T4 TX 3 T- M: case. T-: T classification not defined. N-: N classification not defined. Carcinoma of the Larynx, NOS T and N Status N N N Na Nb Nc N3 NX N- T Tis T T T3 T4 3 TX T- 4 6 M: case. N-: N classification not defined. T-: T classification not defined.

52 4 Treatment method Glottis Supraglottis Subglottis Larynx, NOS (C3.) (C3.) (C3.) (C3.9) Surgery ) Without ) With ) Unknown Radiotherapy ) Without ) With ) Unknown 3 Chemotherapy ) Without ) With ) Unknown Carcinoma of the Larynx Cases Treatment Method for the Primary Lesion by Subsite Sequence of Treatment Methods for the Primary Lesion by Subsite Sequence of Glottis Supraglottis Subglottis Larynx, NOS treatment methods (C3.) (C3.) (C3.) (C3.9) No treatment 5 4 B) Rad. alone F) (Rad.+Chem.) A) Surg. alone AB) Surg.->Rad. 4 4 CA) Chem.->Surg. 4 3 AF) Surg.-> (Rad.+Chem.) BA) Rad.->Surg. 7 9 CB) Chem.->Rad. 5 7 FA) (Rad.+Chem.) 3 6 ->Surg. BC) Rad.->Chem. 3 4 ABC) Surg.->Rad. 3 ->Chem. Others 7 Unknown Rad.: radiotherapy. Chem.: chemotherapy. Surg.: surgery. Treatment methods in parentheses were given concurrently.

53 43 Treatment method T Tis T T T3 T4 TX T- Surgery ) Without ) With ) Unknown Radiotherapy ) Without ) With ) Unknown 3 Chemotherapy ) Without ) With ) Unknown T-: T classification not defined. Carcinoma of the Larynx Cases Treatment Method for the Primary Lesion by T Classification Sequence of Treatment Methods for the Primary Lesion by T Classification Sequence of treatment methods T Tis T T T3 T4 TX T- No treatment 4 B) Rad. alone F) (Rad.+Chem.) A) Surg. alone AB) Surg.->Rad CA) Chem.->Surg. 3 5 AF) Surg.-> 7 9 (Rad.+Chem.) BA) Rad.->Surg. 4 9 CB) Chem.->Rad. 7 FA) (Rad.+Chem.) 4 6 ->Surg. BC) Rad.->Chem. 4 ABC) Surg.->Rad. 3 ->Chem. Others Unknown T-: T classification not defined. Rad.: radiotherapy. Chem.: chemotherapy. Surg.: surgery. Treatment methods in parentheses were given concurrently.

54 44 Treatment method T Tis T Ta Tb T T3 T4 TX T- Surgery ) Without ) With ) Unknown Radiotherapy ) Without ) With ) Unknown Chemotherapy ) Without ) With ) Unknown T-: T classification not defined. Carcinoma of the Larynx Cases Glottic Carcinoma Treatment Method for the Primary Lesion by T Classification Glottic Carcinoma Sequence of Treatment Methods for the Primary Lesion by T Classification Sequence of treatment methods T Tis T Ta Tb T T3 T4 TX T- No treatment 5 B) Rad. alone F) (Rad.+Chem.) A) Surg. alone AB) Surg.->Rad BA) Rad.->Surg. 3 7 AF) Surg.-> 3 4 (Rad.+Chem.) CA) Chem.->Surg. 4 BC) Rad.->Chem. 3 Others Unknown T-: T classification not defined. Rad.: radiotherapy. Chem.: chemotherapy. Surg.: surgery. Treatment methods in parentheses were given concurrently.

55 45 Treatment method T Tis T T T3 T4 TX T- Surgery ) Without ) With ) Unknown Radiotherapy ) Without ) With ) Unknown Chemotherapy ) Without ) With ) Unknown T-: T classification not defined. Carcinoma of the Larynx Cases Supraglottic Carcinoma Treatment Method for the Primary Lesion by T Classification Supraglottic Carcinoma Sequence of Treatment Methods for the Primary Lesion by T Classification Sequence of treatment methods T Tis T T T3 T4 TX T- No treatment 4 B) Rad. alone A) Surg. alone F) (Rad.+Chem.) 4 6 AB) Surg.->Rad. 4 4 AF) Surg.-> 4 5 (Rad.+Chem.) CB) Chem.->Rad. 5 CA) Chem.->Surg. 3 FA) (Rad.+Chem.) 3 ->Surg. BA) Rad.->Surg. CF) Chem.-> (Rad.+Chem.) Others 3 6 Unknown T-: T classification not defined. Rad.: radiotherapy. Surg.: surgery. Chem.: chemotherapy. Treatment methods in parentheses were given concurrently.

56 46 Treatment method T Tis T T T3 T4 TX T- Surgery ) Without 4 5 ) With ) Unknown Radiotherapy ) Without 3 5 ) With 4 6 9) Unknown Chemotherapy ) Without 4 5 ) With 3 6 9) Unknown 7 3 T-: T classification not defined. Carcinoma of the Larynx Cases Subglottic Carcinoma Treatment Method for the Primary Lesion by T Classification Subglottic Carcinoma Sequence of Treatment Methods for the Primary Lesion by T Classification Sequence of treatment methods T Tis T T T3 T4 TX T- No treatment A) Surg. alone ABC) Surg.->Rad. ->Chem. B) Rad. alone CA) Chem.->Surg. F) (Rad.+Chem.) Others Unknown 7 3 T-: T classification not defined. Surg.: surgery. Rad.: radiotherapy. Chem.: chemotherapy. Treatment methods in parentheses were given concurrently.

57 47 Treatment method T Tis T T T3 T4 TX T- Surgery ) Without 3 ) With 3 9) Unknown Radiotherapy ) Without ) With 4 9) Unknown Chemotherapy ) Without ) With 3 5 9) Unknown 3 6 Carcinoma of the Larynx Cases Carcinoma of the Larynx, NOS Treatment Method for the Primary Lesion by T Classification T-: T classification not defined. Carcinoma of the Larynx, NOS Sequence of Treatment Methods for the Primary Lesion by T Classification Sequence of treatment methods T Tis T T T3 T4 TX T- No treatment F) (Rad.+Chem.) A) Surg. alone CA) Chem.->Surg. FA) (Rad.+Chem.) ->Surg. FCC) (Rad.+Chem.) ->Chem.->Chem. Others Unknown 3 6 T-: T classification not defined. Rad.: radiotherapy. Chem.: chemotherapy. Surg.: surgery. Treatment methods in parentheses were given concurrently.

58 48 Surgical method Glottis Supraglottis Subglottis Larynx, NOS (C3.) (C3.) (C3.) (C3.9) H) No surgery C4) laryngectomy C9) Laryngectomy, other type C) Partial laryngectomy 5 4 C4G) laryngectomy 6 4 with thyroid lobectomy C3) Subtotal laryngectomy 3 4 C4G4) laryngectomy 3 4 with total thyroidectomy C4D) laryngectomy with partial hypopharyngectomy C4DG) laryngectomy with partial hypopharyngectomy and thyroid lobectomy H9)+ Others 6 7 Unknown Carcinoma of the Larynx Cases Surgical Method for the Primary Lesion by Subsite