Conundrum of a Large Bowel Neoplasm: Collision Tumor

A 79-year-old Hispanic man was admitted to the intensive care unit with symptomatic iron-deficiency anemia and watery diarrhea. Radiological images revealed diffuse colonic wall thickening, a soft-tissue fullness in the ascending colon, and multiple mesenteric lymphadenopathies. Colonoscopy showed m...

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Bibliographic Details
Published in:ACG case reports journal 2018-02, Vol.5 (1), p.e13
Main Authors: Soto, Antonio R, Vazquez, Ekie G, Grigg-Gutierrez, Nicole M, Magno-Pagatzaurtundua, Priscilla, Cáceres, William, Toro, Doris H
Format: Article
Language:English
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Case Report
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Summary:A 79-year-old Hispanic man was admitted to the intensive care unit with symptomatic iron-deficiency anemia and watery diarrhea. Radiological images revealed diffuse colonic wall thickening, a soft-tissue fullness in the ascending colon, and multiple mesenteric lymphadenopathies. Colonoscopy showed multiple aphthous ulcers throughout the colon and a large deep ulcer with irregular raised borders in the rectosigmoid area. Histological exam of the ulcers showed severe ulcerative colitis, while biopsy of the deep ulcer revealed a well-differentiated adenocarcinoma. Colectomy specimen was consistent with colliding diffuse large B-cell lymphoma and adenocarcinoma.
ISSN:2326-3253
2326-3253
DOI:10.14309/crj.2018.13