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A Rare Case of Colonic Leiomyosarcoma in Association with Ulcerative Colitis
Daisuke Akutsu1, Yuji Mizokami, Hideo Suzuki
1Department of Gastroenterology and Hepatology, University of Tsukuba, Japan.
Abstract:
Ulcerative colitis (UC) is known to be associated with an increased risk of colorectal cancer. However, the occurrence of non-epithelial malignancies is uncommon. An elevated lesion in the descending colon was found in a 51-year-old woman with a 30-year history of UC. Despite tumor progression, repeated biopsies showed no cancerous findings. Because the lesion was highly suspected to be a malignant tumor, a partial colectomy was performed. The pathological diagnosis was leiomyosarcoma. Leiomyosarcoma of the gastrointestinal tract is rare, and this is only the third known case reported in patients with UC.
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