An Incidental Mass Found in the Terminal Ileum

July 31, 2014

Test your knowledge of this GI finding with questions on diagnosis, laboratory screening, and removal.

A 50-year-old woman presents for a screening colonoscopy. During the examination, the terminal ileum is intubated and a circumferential mass measuring 1.3 cm is incidentally noted (Figure). A biopsy of the mass was taken and results of immunohistochemical staining were positive for chromogranin.

Questions: 

1. What is your diagnosis?

2. What laboratory test can you order to screen for such tumors?

3. How should this mass be removed, endoscopically or surgically?

 

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