GIT VI (UC)

Question 1

Ulcerative colitis on AXR:

Answer 1

• Massive colonic dilatation
• Abnormal mucosal contour
• Shortened colon
• Loss of colonic haustra
• Toxic megacolon (complication)

Question 2

Ulcerative colitis on Br enema:

Answer 2

Single contrast:
• Colonic ulceration > irregular wall
• No haustra
Double contrast:
• Multiple mucosal black dots (mucosal ulceration)
• Irregular outline wall of colon

Question 3

Ulcerative colitis with longstanding disease (Br enema)

Answer 3

lead pip appearance
No haustra no Function
Reflux into the ileum through an incompetent ileocecal valve has occurred

Question 4

CT scan UC

Answer 4

• Circumferential, symmetrical wall thickening with loss of haustra.
• thickening of the colon wall with inhomogenous attenuation
• Target appearance of rectum
• Proliferation of perirectal fat
• mural thickening of the terminal ileum may be visualized in 10-25%

Question 5

Ulcerative colitis vs. Crohn’s:

Answer 5

Slide 65 😩