Question
A 21-year-old man is brought to the emergency room with symptoms of acute intestinal obstruction. His temperature is 38°C (101°F), respirations are 25 per minute, and blood pressure is 120/80 mm Hg. Physical examination reveals a mass in the right lower abdominal quadrant. The patient subsequently undergoes surgery, and a segmental lesion involving the terminal ileum is resected as shown in the image. Which of the following is the most likely diagnosis?
| A. |
Adenocarcinoma
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| B. |
Carcinoid tumor
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| C. |
Crohn’s disease
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| D. |
Ulcerative colitis
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Show Answer
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Correct Answer � B
Explanation
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Answer : B Carcinoid tumor
Crohn disease is a transmural, chronic inflammatory disease that may affect any part of the digestive tract but occurs principally in the distal small intestine and occasionally the right colon.
It has variously been referred to as terminal ileitis and regional ileitis when it involves the ileum and granulomatous colitis when it principally affects the colon.
Skip lesions are common. The affected mucosa has a characteristic “cobblestone” appearance (shown in the image) due to the presence of linear ulcerations and edema, and inflammation of the intervening tissue.
The other choices do not show the characteristic cobblestone morphology that is seen in this case.
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