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  • Title: Granulation tissue polyposis associated with carcinoid tumours of the small intestine.
    Author: Allibone RO, Hoffman J, Gosney JR, Helliwell TR.
    Journal: Histopathology; 1993 May; 22(5):475-80. PubMed ID: 8344657.
    Abstract:
    We report two patients with ileal carcinoid tumours which were associated with polyps due to mucosal granulation tissue proliferation. In both cases the tumours had extensively infiltrated the small bowel wall and mesentery, and one had hepatic metastases. The mucosal surface of each specimen showed numerous, pale brown, sessile polyps which were restricted to the intestinal segment involved by carcinoid tumour, although not always closely related to neoplastic cells. The polyps were formed by the proliferation of capillaries, smooth muscle cells and myofibroblasts as demonstrated by immunohistochemistry and electronmicroscopy.
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