Small Bowel Tumors MCQs

December 24, 2011

QUESTION: With regard to benign tumors of the small intestine, which of the following statements is/are true?

A. Most are found in the ileum

B. Often they produce no symptoms and are difficult to diagnose by either clinical or radiologic examination

C. The most common clinical manifestations are bleeding and obstruction

D. They obstruct the bowel by encroachment on the lumen or by causing intussusception

ANSWER: THE ANSWER IS A,B,C,D

QUESTION: The most common malignant neoplasm of the small bowel is:

a. Primary adenocarcinoma

b. Lymphoma

c. Malignant GIST

d. Metastatic neoplasm

e. Carcinoid tumor

ANSWER

Answer d: Metastatic disease is the most common in the small bowel. Carcinoid and adenocarcinoma are the most common primaries. Melanoma most common metastatic lesion.

QUESTION: Upper endoscopy is performed for an obstructing duodenal mass. Biopsy shows duodenal adenocarcinoma. further workup9 demonstrates no metastatic lesions. The treatment of choice is:

a. chemotherapy only

b. radiation therapy

c. polypectomy with 1cm margin

d. Pancreaticoduodenectomy

ANSWER

The answer is d: Duodenal adenocarcinoma is rare. Treatment is Whipple. Noncancerous lesions do not need resection unless they are causing bleeding or obstruction. Benign tumors may undergo duodenotomy with enucleation — neuroendocrine tumors would be candidates for this.

QUESTION: The most common tumor to metastasize to the small bowel is:

a. Adenocarcinoma of the breast

b. Adenocarcinoma of the lung

c. Melanoma

d. Squamous cell cancer of the skin

ANSWER

The answer is c. Melanoma is the most common tumor to metastasize to the small bowel.

RELATED YOUTUBE VIDEOS

Carcinoid Tumors of the Small Bowel: Optimization of Lesion Detection .

Huge GIST Small Bowel Tumor

SOURCES

MCAT