[A case of gastrointestinal stromal tumor of rectum, difficult to differentiate from leiomyosarcoma of prostate].
[A case of gastrointestinal stromal tumor of rectum, difficult to differentiate from leiomyosarcoma of prostate].
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与前列腺平滑肌肉瘤鉴别困难的直肠胃肠道间质瘤一例[J].
DOI：
10.5980/jpnjurol1989.92.624
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发表时间：
2001
期刊：
影响因子：
--
通讯作者：
Tadashi Motoori
中科院分区：
文献类型：
--
作者：
H. Kuruma;Teruaki Ao;K. Suyama;Norihiko Okuno;H. Mizoguchi;Masakazu Murayama;Ken Koshiba;Tadashi Motoori
一位70岁男性在医院就诊，主诉为频繁排尿和不完全尿潴留。直肠指诊于直肠前壁可触及一鸡蛋大小的硬块。静脉尿路造影显示双侧肾积水严重。经直肠B超、CT及MRI检查均显示前列腺与直肠之间有一直径约5cm的肿块，肿块边界不清。在肿瘤的穿刺活检中，怀疑是前列腺平滑肌肉瘤。我们进行了根治性膀胱切除术，并建立了可控性储尿器。由于肿瘤和直肠不能溶解，因此切除了部分直肠。组织学检查显示直肠胃肠道间质瘤（GIST）。直肠胃肠道间质瘤是一种罕见的疾病，如果与前列腺接触，很难与前列腺平滑肌肉瘤鉴别。
A 70 year-old male was seen at the hospital with the chief complaints of frequent miction and incomplete urinary retention. A hen's egg-sized firm mass was palpable in anterior wall of rectum by digital rectal examination. Intravenous urography showed severe bilateral hydronephroureter. Transrectal ultrasound, CT scan and MRI revealed a mass with 5 cm in diameter between prostate and rectum, and the margin of them were unclear. On needle biopsy of the tumor, leiomyosarcoma of the prostate was suspected. We performed radical cytectomy and created continent urinary reserver. Because the tumor and rectum could not be lysed, part of the rectum was resected. Histological examination showed gastrointestinal stromal tumor (GIST) of rectum. GIST of rectum is a rare entity, and in case of contact with the prostate, it is difficult to differentiate from leiomyosarcoma of prostate.