Departamento de Anatomia Patológica e Medicina Legal, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil.
Rev Soc Bras Med Trop. 2013 Mar-Apr;46(2):252-4. doi: 10.1590/0037-8682-1681-2013.
We describe a schistosomal polyp in the anus of a 24-year-old patient, born in Viçosa, State of Minas Gerais, and living in Belo Horizonte, State of Minas Gerais. From 8 to 13 years of age, he swam in the rivers that bathe Viçosa. The histopathological examination has shown a lesion, lined by a keratinized squamous epithelium, ulcerated, with granulomas, centered or not by Schistosoma mansoni egg, laid, in loco, by the female present in the vascular lumen of a vein of the hemorrhoidal plexus. There was also a diffuse, nonspecific inflammation in the dermis. The patient was treated with praziquantel. Four months after the treatment, sigmoidoscopy showed a normal rectal mucosa, and negative oogram and stool tests. Ultrasound of abdomen was normal.
我们描述了一位 24 岁患者肛门处的血吸虫息肉，他出生于米纳斯吉拉斯州的维索萨，现居该州贝洛奥里藏特。8 至 13 岁期间，他常在流经维索萨的河中游泳。组织病理学检查显示，病变由角化鳞状上皮排列，溃疡形成，有肉芽肿，中央或不中央有曼氏血吸虫卵，由位于痔丛静脉血管腔内的雌性虫产生。真皮内还存在弥漫性非特异性炎症。患者接受了吡喹酮治疗。治疗 4 个月后，直肠镜检查显示直肠黏膜正常，粪便虫卵检查和检查均为阴性。腹部超声正常。
