I. Leiomyosarcoma of the Rectum:Report of a Case and Review of the Literature

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Case report : The patient was a 30 year old male with the complaint of anal bleeding of 7 days duration about 3 months prior to the admission. Digital rectal examination revealed a hard, smooth, not-tender submucosal mass in the anterior aspect of the rectum. Physical examination was otherwise entirely negative. Complete excision of the tumor was carried out. The tumor mass measured 1 × 1 × 1.5 cm. Histological diagnosis was leiomyosarcoma in low grade malignacy. No signs of local recurrence or distant metastasis were found at the time of this report, a year after the operation.<BR>Review of the literature : Forty five cases of leiomyosarcoma of the rectum were found in the Japanese medical literature. The incidence was most frequent in the 5th decade.<BR>The majority of the tumors ranged from hen's egg to man's fist in size. The smallest one was 1 × 1 × 1.5 cm that we reported.<BR>Common symptoms were rectal bleeding and difficult defecation. As to the treatment, size and malignant grade should be considered. Abdominoperineal resection of the rectum was performed in many cases, but a complete local excision of the small lesion with low grade malignancy may be justified, provided careful long-term follow up is possible.
日本大腸肛門病学会の論文