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This paper presents the report of a case with double primary leiomyosarcomas at the Sigmoid colon and the jejunum because of its rare occurrence. Only one case with multiple lesions of leiomyosarcoma involving small intestine and colon has been reported in the literature to date. <BR>The case presented here is 72-year-old woman in which preoperative diagnosis of carcinoma at the sigmoid colon was made. In this particular case, sigmoidectomy and resection of left kidney, ureter and adnexa were carried out because of the extent of lesions. Furthermore, tumor at the jejunum which was not detected with preoperative examination was found simultaneously at the time of surgery and partial resection of jejunum with tumor was carried out. <BR>The size of the resected lesion of the sigmoid colon and the jejunum were 7.0 × 7.0 × 6.0 cm and 2.2 × 1.8 × 0.5 cm respectively. Thus, each tumor was situated apart from the other and the tumor at the jejunum was smaller than that of sigmoid colon. These lesions were diagnosed as independent primary leiomyosarcoma histologically.
日本大腸肛門病学会の論文