GI Radiology > Colon > Quiz

Colon Quiz

1.  Hirschsprung's Disease is caused by dysfunctional neurons in the colon.
 

True
False



2. Which of the following will be NOT be seen in Hirschsprung's Disease?
 

A. abdominal films with enormously distended intestines
B. barium enema with a transitional zone
C. CT with tightened anal sphincter



3. Which of the following is Malrotation NOT associated with?
 

A. Ulcerative colitis
B. Intussusception
C. Intestinal atresia



4.  Malrotation occurs if the midgut does not complete the 180-degree rotation prior to re-entering the abdominal cavity during weeks 25-30 of gestation.
 

True
False



5.  Which of the following statements is False?
 

A. Duplications may present with symptoms of obstructions, volvulus, and hemorrhage
B. Rectal duplications need to be resected because of the risk of malignant degeneration
C. Duplications can only be visualized with barium studies
D. Dupl ications may become complicated by infection



6.  Ischemic colitis is usually caused by an arterial occlusion.
 

True
False



7.  Chronic colonic colitis may cause segmental ischemic strictures resulting in obstructive signs and symptoms.
 

True
False



8. Which of the following is NOT associated with Crohn's Disease?
 

A. Skip lesions
B. Cobblestoning
C. Limited to the colon



9. Which of the following is NOT associated with Ulcerative Colitis?
 

A. Bloody diarrhea
B. Transmural inflammation
C. Increased risk of colon cancer



10.  45% of patients with colonic diverticuli have minor bleeding at some point in their life.
 

True
False



11.  Intussusception may be caused by any of the following EXCEPT:
 

A. Bacterial infection
B. tumor
C. Meckel's diverticulum
D. foreign body



12.  Small bowel obstruction is a rare phenomenon.
 

True
False



13.  Intestinal obstruction may cause strangulation and impair blood flow to the bowel.
 

True
False



14. Which of the following can be used to differentiate a paralytic ileus from a partial small bowel obstruction?
 

A. distended loops on plain film
B. dynamic air-fluid levels
C. patient's symptoms



15. Choose the INCORRECT statement about diverticula:
 

A. most occur in the sigmoid colon
B. most occur on the antimesenteric side of the colon
C. most are symptomatic



16. Which of the following IS associated with Diverticulitis:
 

A. often assymptomatic
B. palpable mass
C. therapy with antibiotics and high-fiber diet



17.  Patients with suspected toxic megacolon should have a barium study to confirm diagnosis.
 

True
False



18.  Patients with toxic megacolon will not have bowel sounds or bowel movements, but continue to have peristalsis.
 

True
False



19.  Volvulus is often a chronic disease with intermittent acute attacks.
 

True
False



20.  Sigmoid volvulus is more common than cecal volvulus.
 

True
False



21.  Amebic colitis is spread through fecally contaminated food/water.
 

True
False



22.  The pseudomembrane of pseudomembranous colitis is composed of sloughed mucosa and white blood cells.
 

True
False



23.  Which type of polyp is most likely to develop into cancer?
 

A. tubulovillous adenomatous
B. inflammatory
C. villous adenomatous
D. hyperplastic



24.  The larger the polyp the higher the chances that it will become malignant.
 

True
False



25.  Hyperplastic polyps have no malignant potential.
 

True
False



26. 50% of colon cancers develop in where?
 

A. rectosigmoid area
B. cecum
C. transverse colon



27.  Distal tumors are more likely to present with hematochezia than proximal.
 

True
False



28.  Colon cancer can spread via
 

A. lymphatic spread
B. hematogenous spread
C. direct invasion into surrounding tissues
D. All of the above



29.  Metastases are nearly impossible to differentiate from primary tumors on imaging.
 

True
False



30.  Colorectal adenocarcinoma is the most common malignancy of the GI tract.
 

True
False

 

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