Gastrointestinal radiology 5

Question 1

Common causes of small bowel obstruction?

Answer 1

Adhesions. Hernias. Neoplasms. Intussusception. Volvulus. Foreign bodies. Inflammatory process.

Question 2

Prestenotic phase of Crohn disease, findings?

Answer 2

Blunting, flattening, distortion, straightening, and thickening of mucosal folds.

Question 3

Other prestenotic changes of Crohn disease?

Answer 3

Apthous erosions. Cobblestoning. Inflammatory pseudopolyps. Postinflammatory polyps. Skip lesions. Pseudodiverticula.

Question 4

Small bowel infection that can mimick appendicitis clinically and Crohn disease radiographically?

Answer 4

Yersiniosis at terminal ileum.

Question 5

Small bowel infection of middle aged men with malabsorption, fever, weight loss, chronic uveitis, endocardiits, arthralgia, lymphadenpathy, and skin pigmentation?

Answer 5

Whipple disease.

Question 6

Benign small bowel neoplasms?

Answer 6

Adenomas. Leimyomas. Lipoma. Peutz-Jeghers syndrome. Cowden disease. Familial polyposis.

Question 7

Malignant small bowel neoplasms?

Answer 7

Carcinoid tumors. Adenocarcinoma. Lymphoma. Kaposi sarcoma. Leiomyosarcoma. Metastases.

Question 8

Middle-aged men, enlargement of gastric rugal folds?

Answer 8

Menetrier disease (protein-losing enteropathy).

Question 9

Benign gastric neoplasms?

Answer 9

Hyperplastic polyp (sessile, less than 1cm). Adenomatous polyps (>1cm). Leiomyoma.

Question 10

Malignant gastric neoplasms?

Answer 10

Gastric adenocarcinoma. Gastric lymphoma. Kaposi sarcoma.