Nasogastric tube. Stomach. Pylorus. Duodenum 1. Duodenum 2. Duodenum 3. Duodenum 4

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1 Esophagus Barium Swallow

2 Stomach and Duodenum 4 year old Upper GI Nasogastric tube

3 Stomach and Duodenum 4 year old Upper GI Nasogastric tube Stomach Pylorus Duodenum 1 Duodenum 2 Duodenum 3 Duodenum 4

4 Abdominal Radiograph (AKA KUB) Diaphragm Liver Stomach Kidney Psoas Colon

5 Small Bowel Follow Through Two circles highlight a jejunal segment (right circle) and an ilieal segment (left circle) Jejunal segments have markings or circular folds (plicae circulares / valvulae conniventes) that completely traverse the diameter at a closer interval located in the left and upper hemiabdomen. The circular markings diminish in size and frequency towards the transition into the ileum. Jejunum is larger in diameter compared to the ileal segments.

6 Barium Enema Hepatic flexure Ascending colon Appendix Transverse colon Splenic flexure Descending colon Sigmoid colon Which parts of the colon are intraperitoneal and secondarily retroperitoneal? Intraperitoneal: cecum appendix transverse colon sigmoid colon Secondarily retroperitoneal: ascending colon descending colon

7 Right and Left Liver

8 Caudate Lobe

9 Biliary System MRCP* Left hepatic duct Right hepatic duct Cystic duct Common hepatic duct Common bile duct Gallbladder Duodenum * Magnetic resonance cholangiopancreatography

10 Biliary System ERCP* Gallbladder Cystic duct Left hepatic duct Right hepatic duct Common hepatic duct Common bile duct Scope that injects contrast * Endoscopic retrograde cholangiopancreatography

11 Axial Image 1 Gallbladder Stomach Liver Esophagus Diaphragm/crura

12 Duodenum Axial Image 2 Hepatic flexure Stomach Gallbladder Portal vein Inferior vena cava Spleen Descending aorta

13 Axial Image 3 Duodenum 2 Stomach Splenic flexure Left gastric Gallbladder Liver Pancreas Spleen

14 Axial Image 4 Duodenum 2 Jejunum Portal vein Inferior vena cava Pancreas Splenic vein Splenic Adrenal gland

15 Axial Image 5 Transverse colon Stomach Splenic vein Splenic

16 Axial Image 6 Left gastric Portal vein Common hepatic Splenic vein Splenic

17 Axial Image 7 Pancreas Duodenum 2 Celiac Trunk Kidney Adrenal gland

18 Axial Image 8 Left renal vein Pancreas Duodenum 2 Inferior vena cava Inferior mesenteric vein Superior mesenteric

19 Superior mesenteric Axial Image 9 Superior mesenteric vein Ascending colon Descending colon

20 Axial Image 10 Superior mesenteric Superior mesenteric vein Inferior mesenteric Inferior mesenteric vein

21 Axial Image 11 Superior mesenteric Superior mesenteric vein Inferior mesenteric vein Terminal ileum Cecum Inferior vena cava Aorta

22 Coronal Image 1 Superior mesenteric Intestinal branches Right colic

23 Coronal Image 2 Superior mesenteric vein Right colic Splenic vein Superior mesenteric

24 Coronal Image 3 Liver Gallbladder Stomach Pancreas Ascending colon Duodenal sweep D2 D4 Descending colon

25 Coronal Image 4 Right hepatic Left hepatic Cystic Splenic

26 Coronal Image 5 Proper hepatic Celiac trunk Splenic Superior mesenteric Inferior mesenteric

27 Coronal Image 6 Inferior mesenteric Superior rectal Left colic Sigmoid arteries

28 Coronal Image 7 Colic Ileocolic Ileal

29 Coronal Image 8 Portal vein Common hepatic Left gastric Splenic Celiac trunk

30 Celiac Artery- DSA* Celiac trunk Common hepatic Gastroduodenal Splenic Proper hepatic * Digital subtraction angiography

31 Superior Mesenteric Artery- DSA* Superior mesenteric Right colic Middle colic Jejunal branches Ileocolic Colic branch Cecal branch Ileal branches * Digital subtraction angiography

32 Inferior Mesenteric Artery- DSA* Inferior mesenteric Left colic Superior rectal Sigmoid branches (very faint) * Digital subtraction angiography

33 Common origin of celiac trunk and superior mesenteric arteries Wide variety of different anatomic variants

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