2015 OSU GI Flashcards
Helminthic cholangitis caused by…
- E. Histolytica
- Ascariasis lumbricoides
- Cryptosporidiosis
Ascarias lumbricoides - Most common helmenthic infxn, clonorchis sinensis, Fasciola hepatica
Crohn’s least likely location
- Esophagus
- Stomach
- Duodenum
- Rectum
Stomach
- Esophagus (long distal stricture, 3%)
- Stomach - CORRECT (1-2%)
- Duodenum (4-10%
- Rectum (14-50%)
Barrett esophagitis
- Distal esophageal narrowing
- Mid esophageal narrowing with adjacent change in mucosa
- Distal esophageal marked dilation
Mid esophageal narrowing with adjacent change in mucosa.
Non-embolic mesenteric ischemia
- Low flow SMA
- Multiple intraluminal thrombi
- Small caliber mesenteric vessels
Low flow SMA
Venous thrombosis:
- More edema than arterial thrombus
- More common than arterial thrombus
- More gradual onset
- More common association with pneumatosis
More edema than arterial thrombus
Occlusion in aorta (Leriche); what collaterals are used to supply lower extremities
- Arc of buhler
- Arc of barkow
- Path of winslow
- Arc of riolan
Path of Winslow and Arc of Riolan are both technically correct, but Winslow pathway is specifically mentioned as a collateral pathway for Leriche syndrome.
- Arc of Buhler (connects celiac and SMA)
- Arc of Barkow (connects R and L gastroepiploic arteries)
- Path of Winslow (connects mammary arteries->internal thoracic arteries->inferior epicastric arteries->external iliac arteries.)
- Arc of Riolan (connects SMA and IMA
CTE vs MRE - Better spatial resolution?
CTE=CT Elastography
MRE=MR Elastography
CTE has better spatial resolution.
Peripheral hypoechoic liver masses US?
Infantile hemangioma
Peripheral, and hypoechoic
Biopsy ADH
Surgical consult for excision
Barrett esophagus - appearance on endoscopy and fluoro
Mid esophageal narrowing
Squamocolumnar junction moved proximally up the esophagus
