Intestinal vascular disorders

Question 1

Most common site for GI ischemia

Answer 1

Colon

Question 2

Arteries supplying the GIT

Answer 2

Celiac A
Superior mesenteric A
Inferior mesenteric A

Question 3

Watershed zones of GI blood supply

Answer 3

Splenic flexure
Rectosigmoid

Question 4

Poor prognosis factors of ischemic bowel disease

Answer 4

COPD
Symptoms for >2 wks
R sided colonic disease

Question 5

Terminal ileum, cecum, and R colon appear distended, friable, and congested in premature infant. some submucosal gastric bubbles are present.

Answer 5

Necrotizing enterocolitis

Question 6

Abdominal x-ray finding in necrotizing enterocolitis

Answer 6

Pneumatosis intestinalis –> gas within the intestinal wall

Question 7

Thin-walled, dilated, submucosal vessels that develop secondary to persistently elevated venous pressure

Answer 7

Hemorrhoids

Question 8

Characterized by malformed submucosal and mucosal blood vessels that are dilated and thin walled. Most commonly in cecum or R colon.

Answer 8

Angiodysplasia

Question 9

Ectatic nests of tortuous veins, venules, and capillaries in the cecum and R colon. Associated with increased risk massive hemorrhage.

Answer 9

Angiodysplasia.