Adenocarcinoid tumor of the colon arising in preexisting ulcerative colitis.

  title={Adenocarcinoid tumor of the colon arising in preexisting ulcerative colitis.},
  author={Alan P. Lyss and John Jones Thompson and John H. Glick},
  volume={48 3},
Patients with ulcerative colitis are at increased risk of developing adenocarcinoma of the colon. The authors describe a patient whose colonic neoplasm demonstrated histologic characteristics of both an adenocarcinoma and a carcinoid tumor and which was pathologically identical to a appendiceal adenocarcinoid. Because individual tumor cells stained positively for both mucin and argentaffin granules, the histologic picture is unique among the malignancies seen in patients with ulcerative colitis… CONTINUE READING

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