Avendano Tania Lisseth Mercado, Flores Jorge Adolfo Chamorro
Hospital Escuela Dr. Roberto Calderón Gutiérrez, Costado Oeste Mercado Roberto Huembes, Managua Nicaragua.
Radiol Case Rep. 2020 Aug 14;15(10):1887-1890. doi: 10.1016/j.radcr.2020.07.052. eCollection 2020 Oct.
Leiomyosarcomas are a rare type of neoplasm of the digestive tract with an estimated presentation of 0.1% predominantly between the fifth and sixth decade of life [1]. We report the case of a 61 years old male patient without previous medical conditions, with melena and constitutional symptoms and an extensive rectal mass with a final diagnosis of diagnosis leiomyosarcoma of the large intestine, grade II (FNCLCC). Given the rarity of this pathology and the fact that it does not present specific clinical, endoscopic, and imaging features made it difficult to differentiate from other entities of greater frequency such as rectal adenocarcinoma and GIST, representing a real diagnostic challenge.
平滑肌肉瘤是一种罕见的消化道肿瘤，估计发病率为0.1%，主要发生在50至60岁之间[1]。我们报告一例61岁男性患者，既往无病史，有黑便和全身症状，直肠有广泛肿块，最终诊断为大肠平滑肌肉瘤，II级（法国国立癌症中心联合会分级）。鉴于这种病理情况罕见，且其不具有特异性的临床、内镜和影像学特征，难以与其他更常见的疾病如直肠腺癌和胃肠道间质瘤相鉴别，这是一个真正的诊断挑战。
