Kim Han-Gil, Yang Jung-Wook, Hong Soon-Chan, Lee Young-Joon, Ju Young-Tae, Jeong Chi-Young, Lee Jin-Kwon, Kwag Seung-Jin
Department of General Surgery, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, Korea.
Department of Pathology, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, Korea.
Ann Coloproctol. 2018 Jun;34(3):160-163. doi: 10.3393/ac.2017.12.20. Epub 2018 Jun 30.
Toxocara canis is an important roundworm of canids and a fearsome animal parasite of humans. Human infections can lead to syndromes called visceral larva migrans (VLM), ocular larva migrans, neurotoxocariasis, and covert toxocariasis. VLM is most commonly diagnosed in children younger than 8 years of age, but adult cases are relatively frequent among those infected by ingesting the raw tissue of paratenic hosts in East Asia. This research reports the case of a 59-year-old man with sigmoid colon cancer, who visited our institution for surgery. An intraperitoneal mass was found on preoperative computed tomography, and it was thought to be a metastatic mass from sigmoid colon cancer. A postoperative histologic examination and serum test showed eosinophilic granuloma due to toxocariasis. Diagnosis of VLM is often difficult and highly suspicious in adults. Researchers suggest, although rarely, that VLM be included in the differential diagnosis as a cause of intraperitoneal tumors.
犬弓首线虫是犬科动物重要的蛔虫，也是可怕的人体寄生虫。人类感染可导致内脏幼虫移行症（VLM）、眼幼虫移行症、神经弓首线虫病和隐匿性弓首线虫病等综合征。VLM最常见于8岁以下儿童，但在东亚地区，因摄入转续宿主的生组织而感染的成年人中，成人病例相对常见。本研究报告了一例59岁患有乙状结肠癌的男性病例，该患者因手术前来我院就诊。术前计算机断层扫描发现腹腔内有肿块，考虑为乙状结肠癌转移瘤。术后组织学检查和血清检测显示为弓首线虫病引起的嗜酸性肉芽肿。VLM在成年人中的诊断通常很困难且高度可疑。研究人员建议，尽管很少见，但在鉴别诊断中应将VLM作为腹腔肿瘤的病因之一。
