GI Section 1: Luminal (Selected Small Bowel Path) Flashcards
Taget sign
SINGLE
GIST, Primary AdenoCA, Lymphoma, Ectopic Pancreatic mets, Mets (Melanoma
MULTIPLE
Lymphoma, MEt (melanoma)
Clover Leaf sign
Aunt Minnie for Healed Peptic Ulcer of the Duodenal Bulb
“sand like nodules”
Whipples (Tropheryma Whipplei)
Aids (<CD4 <100), Whipple like, MAC positive
Pseudo-Whipples
bstrucfion to the flow of lymph from the small intestine into the mesentery.
Intestinal Lymphangiectasia
dilation ofthe intestinal and serosal
lymphatic channels
RIbbon Bowel
Graft vs Host
This is a compression of the portion of the duodenum (D3) by the SMA (it pinches the duodenum
in the midline)
SMA Syndrome
Stomach and Proximal Duodenum (DI,D2) will be dilated.
It is seen in patients who have recently lost a lot of weight
SMA Syndrome
Small bowel malabsorption of gluten.
Celiac Sprue
Fold Reversal is the Buzzword
Celiac Sprue
Moulage Sign
dilated bowel with effaced folds (tube with wax poured in it)
This is a congenital true diverticulum of the distal ileum.
Meckel’s Diverticulum I Diverticulitis:
persistent piece of the omphalomesenteric duct
Meckel’s Diverticulum I Diverticulitis
Meckel’s Diverticulum population
2% of pop
2 types of heterotropic mucosa (gastric and pancreatic)
2 ft from the IC valve
2 inches long (2 cm diameter)
2 y.o. and below
Meckel’s scan
Tc-Perchnetate
High Yield Meckel’s Trivia (Regarding Complications)
- Can get diverticulitis in the Meckels (mimic appendix)
- GI Bleed from Gastric Mucosa (causes 30% of symptomatic cases)
- Can be a lead point for intussusception (seen with inverted diverticulum)
- Can cause Obstruction
You can have fold thickening of the duodenum from:
- inflammatory processes of the pancreas or gallbladder.
- thickening + fistula in Crohn’s
- primary duodenal Crohns
- Chronic dyalysis
Important association of Jejunal diverticulosis
Overgrowth and malabsorption
mechanical obstruction secondary to the passage of a gallstone in the lumen of the bowel.
Gallstone ileus
Gallstones access the bowel by eroding through the duodenum
(usually)
“Riglers Triad”
Pneumobilia
Obstruction
Ectopic location of a gallstone