Patient Presents With Bloody Stools, Abdominal Pain

A 52-year-old man presents with lower abdominal pain and bloody stools. A colon biopsy is obtained. What is your diagnosis?

A 52-year-old man presents with lower abdominal pain and bloody stools. A colon biopsy is obtained.

What is your diagnosis?

A. Gastrointestinal stromal tumor

B. Large-cell neuroendocrine carcinoma

C. Lymphoma

D. Adenomatous polyp

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