Cushing it uphill: a Sisyphean case
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1 Sunita MC De Sousa Ann I McCormack St Vincent s Hospital, Sydney ESA Clinical Weekend 2014 Cushing it uphill: a Sisyphean case
2 None Declarations of interests
3 27 F, engaged to be married Weight gain, fatigue, insomnia, hirsutism, acne, sweating, galactorrhoea early 2011 No FHx of endocrine neoplasia Weight gain, hirsutism, fatigue 2008 bilateral ovarian dermoid cysts Respiratory, neurological & thyroid tissue Symptoms resolved with resection
4 Biochemical evaluation 24-UFC 811 nmol/d (54-319) ACTH 10.7 pmol (0-12.0) PRL 794 miu/l (85-500) No suppression on 1mg overnight dex test Normalised on cabergoline TSH 0.37 miu/l ( ) ft pmol/l ( ) ft3 4.5 pmol/l ( ) Normalised spontaneously IGF-1 55 nmol (15-43) GH suppressed on OGTT
5 MRI 1, Oct 2011
6 MRI 1, Oct 2011 Declined IPSS
7 ACTH stain 2008 dermoid cyst negative Ovarian vein sampling no gradient Repeat ovarian cystectomy Aug 2012
8 MRI 2, Oct 2012 Declined IPSS
9 TSS Nov 2012 Normal pituitary
10 Ongoing hypercortisolism Mar 2013 Modest weight loss, remained Cushingoid 24-UFC 1159 nmol/d ACTH 11.7 pmol/l Agreed to IPSS
11 IPSS Apr 2013 Rt IPS : periph ACTH = 8 (>2) Corrected for PRL = (>0.8) R IPS L high jugular V Peripheral ACTH pg/ml PRL miu/l No ectopic source on CT chest/abdomen
12 Rpt TSS Jun 2013 Pituitary hyperplasia
13 Ongoing hypercortisolism Sept UFC 1491 nmol/d ACTH 18 pmol/l Commenced ketoconzaole / cabergoline Reference Dec 2013 Elevation above ULN RIA x HPLC x
14 MRI 4, Dec 2013
15 MRI 1, Oct 2011 MRI 2, Oct 2012 MRI 3, Mar 2013 MRI 4, Dec 2013
16 Emerging hypopituitarism Jan 2014 Reference E2 pmol/l 55 LH IU/L 4.3 FSH IU/L 6.9 IGF-1 nmol/l GH miu/l < TSH miu/l ft4 pmol/l Oligomenorrhoea, osteopenia HRT commenced
17 What is the diagnosis? What is the treatment?
18 Intraoperative smears 2012, 2013?Adenoma
19 Ovarian teratoma tissue 2012?Ectopic CRH syndrome
20 9 8.5 ketoconazole 400 BD 200 BD 300 BD metformin 1000 nocte cabergoline 0.5 wkly pasireotide 600 BD 900 BD UFC xuln HbA1c (%) f'bsl (mmol/l) RTx Deferred family planning 0 25-Sep 25-Oct 25-Nov 25-Dec 25-Jan 25-Feb 25-Mar 25-Apr 25-May 25-Jun 25-Jul
21 Issues Identification of the cause of ACTHdependent hypercortisolism Management of refractory Cushing s disease Impact of Cushing s syndrome on reproductive health
22 Cushing s syndrome 20% ACTHindependent 80% ACTHdependent 80% Pituitary 20% Ectopic (EAS) Pituitary adenoma (CD) Pituitary hyperplasia Carcinoid/NET Newell-Price 2011 Newell-Price et al 2006 Ectopic CRH (ECS) SCLC
23 Clues to EAS Higher UFC Hypokalaemia SCLC rapid onset Myopathy Hyperpigmentation Absence of wt gain, fat redistribution Invitti et al 1999 Ilias et al 2005 Newell-Price 2011 Newell-Price et al 2006
24 Tumours with isolated CRH n Medullary thyroid cancer 7 Phaeochromocytoma 4 Prostate cancer 3 Intrasellar gangliocytoma 3 SCLC 2 SCC (unknown primary) 2 Bronchial carcinoid 1 Clues to ECS Evidence of primary tumour Pituitary hyperplasia High-normal plasma CRH Varying dynamic test results Shahani et al 2010 Wajchenbger et al 1995
25 Localisation to the pituitary MRI HDDST CRH test No tumour visible in 40% 20% CD don t suppress 10% CD don t stimulate 10% incidentaloma High specificity 80% a priori risk of pituitary source Newell-Price et al mm adenoma on MRI + suppression on HDDST + stimulation on CRH IPSS not necessary
26 Histopathological diagnosis of CD Intraoperative assessment Freezing cellular artifact Smearing disrupts architecture May wholly contain tumour Adenoma in 96% smears vs 69% paraffin block Kurosaki et al 2000
27 Management of refractory CD TSS: 69-93% at initial, 20-77% at rpt BLA: Nelson s in 8-38% Radiosurgery: 17-54% Vs conventional RTx Efficient Quick onset Similar cure rate?less hypopituitarism Aghi 2008
28 Cabergoline Aghi 2008
29 New kids Pasireotide SSA, especially SSTR 5 Normalised UFC at 6mo in 15-26% New-onset DM (48%) Diarrhoea (58%) LCI699 Potent 11β-Ohase inhibitor Substantial UFC in 12/12 Wt gain (3.5 kg) Hypokalaemia (4/12) BP (10/6 mmhg) Colao et al 2012 Bertagna et al 2014
30 Hypercortisolism & fertility 80% of hypercortisolaemic women have oligo/amenorrhoea 10% 3% 2% 3% 33% CD EAS AA 12% 10% 1% 2% CD 8% 67% EAS AA Adrenal Ca MAH Adrenal Ca Other 46% Lindsay et al % AIH Other Unknown Difficult to diagnose serum cortisol, CBG, UFC Placental CRH Lactotroph hyperplasia Orth 1995
31 Reproductive outcomes Maternal morbidity Fetal morbidity HTN (68%) Prematurity (43%) Diabetes, IGT (25%) IUGR (21%) Preeclampsia (14%) Stillbirth (6%) Osteoporosis, fracture (5%) Miscarriage (5%) Psychiatric disorders (4%) Hypoadrenalism (2%) Cardiac failure (3%) Wound infection (2%) 2 cases of neonatal death, intraventricular haemorrhage Maternal death (2%) Single cases of cleft lip, PDA, CoA Lindsay et al 2005
32 CD TSS Management of refractory CD in pregnancy?? Rpt TSS BLA RTx Medical Rx Ketoconazole Metyrapone Pasireotide Mitotane LCI699 RU-486 Lindsay et al 2005
33 Key points 1. CD is difficult to diagnose and manage, therefore best treated in multidisciplinary setting 2. CD is the commonest cause of hypercortisolism, but beware clues to EAS & ECS 3. Increasing options in medical therapy may affect treatment paradigms in the future 4. Hypercortisolism is associated with significant maternal & fetal morbidity, and pregnancy may be best deferred
34 References Newell-Price J. Cushing s syndrome. In: Wass JAH, Stewart PM, Amiel SA, et al. Oxford Textbook of Endocrinology and Diabetes. 2 nd Ed. Oxford, UK: Oxford University Press; p Newell-Price J, Bertagna X, Grossman AB, et al. Cushing s syndrome. Lancet 2006;367: Ilias I, Torpy DJ, Pacak K, et al. Cushing's syndrome due to ectopic corticotropin secretion: twenty years' experience at the National Institutes of Health. J Clin Endocrinol Metab 2005;90: Invitti C, Giraldi FP, De Martin M, et al. Diagnosis and management of Cushing s syndrome: results of an Italian multicentre study. J Clin Endocrinol Metab 1999;84: Shahani S, Nudelman RJ, Nalini R, et al. Ectopic corticotropin-releasing hormone syndrome from metastatic small cell carcinoma: a case report and review of the literature. Diagn Pathol 2010;5: Wajchenberg BL, Mendonca B, Liberman B, et al. Ectopic ACTH syndrome. J Steroid Biochem Mol Biol 1995;53: Kurosaki M, Luedecke DK, Knappe UJ et al. The Value of Intraoperative Cytology During Transsphenoidal Surgery for ACTH-Secreting Microadenoma. Acta Neurochir (Wien) 2000;142: Aghi MK. Management of recurrent and refractory Cushing disease. Nat Clin Pract Endocrinol Metab 2008;4: Bertagna X, Pivonello R, Fleseriu M et al. LCI699, a Potent 11β-hydroxylase Inhibitor, Normalizes Urinary Cortisol in Patients With Cushing s Disease: Results From a Multicenter, Proof-of-Concept Study. J Clin Endocrinol Metab 2014;99: Lindsay JR, Jonklaas J, Oldfield EH, et al. Cushing s syndrome during pregnancy: personal experience and review of the literature. J Clin Endocrinol Metab 2005;90: Orth DN. Cushing s syndrome. N Engl J Med 1995;332:
35 Acknowledgements Thank you to Clinicians sharing in patient care: A/Prof Tony O Sullivan, Dr Mridula Lewis, A/Professor Robert Smee, Dr Mark Davies Prof Roger Smith for CRH staining Dr Anita Muljono for ACTH staining Dr Yael Barnett for MRI review
36 Supplementary slides
37 Crooke s hyaline change Crooke 1935
38 CRH in the skin Ito et al 2005
39 Substantial UFC reduction in 50% Colao et al 2012
40 Substantial UFC reduction in all Bertagna et al 2014
41 Other steroidogenic effects of LCI699 Bertagna et al 2014
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