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Revista da Sociedade Brasileira de Medicina Tropical

Print version ISSN 0037-8682


RASO, Pedro; SANDER, Eliane Mansur; RASO, Leonardo Arruda Moraes  and  ANDRADE FILHO, José de Souza. Anal polyp caused by Schistosoma mansoni. Rev. Soc. Bras. Med. Trop. [online]. 2013, vol.46, n.2, pp.252-254. ISSN 0037-8682.

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.

Keywords : Schistosoma mansoni; Anal polyp; Anus; Schistosomiasis.

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