Leiomyosarcoma of the Sigmoid Mesocolon: Report of a Case

乙狀結腸系膜平滑肌肉瘤屬罕見病例。雖然源生自腸系膜，它應被當作後腹腔腫瘤的一種表現形。因為腫瘤位置使症狀不明顯，診斷時，腫瘤多已很大且合併遠處轉移，早期發現幾乎不可能。電腦斷層和核磁共振影像是較佳診斷工具，但鑑別及確定診斷仍須靠細胞病理學，這也讓手術前確認更加困難。我們在此報告一個病例，一位五十二歲女性，二年來始終誤認為子宮肌瘤，因下腹不適、無法緩和，來本院接受手術治療，才發現乙狀結腸系膜有一13×7×6.5公分之腫瘤。手術完全切除後，病理證明為惡性平滑肌肉瘤，術後追加檢查，並無遠處轉移。

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並列摘要

Although leiomyosarcoma arising primarily in the sigmoid mesocolon is rare, these sarcomas can be considered a special kind of retroperitoneal tumors. The clinical features are rarely obvious because of their location and lack of symptoms. Hence, they usually attain large sizes and may have metastases to distant sites at the time of diagnosis. Most authors agree on using computer tomography (CT) and nuclear magnetic resonance imaging (MIII) as diagnostic tools, but only histological examination can confirm the diagnosis, thus making a definitive pre-operative diagnosis difficult. We report the case of a 52-year-old female with low abdominal discomfort for 2 years, who mimicked having a large uterine myoma. During laparotomy, a tumor that was 13×7×6.5 cm in size was found on the sigmoid mesocolon. Curative resection was done, and the pathology confirmed a high-grade leiomyosarcoma. The post-operative survey revealed no evidence of distant metastasis.

並列關鍵字

leiomyosarcoma ； sigmoid mesocolon

國際替代計量

Leiomyosarcoma of the Sigmoid Mesocolon: Report of a Case

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