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Updated: Jul 5, 2025

Mass Isolation and In Vitro Cultivation of Intramolluscan Stages of the Human Blood Fluke Schistosoma Mansoni
Published on: January 14, 2018
The lucky polyp: an unusual manifestation of chronic schistosomiasis
Inês Costa Santos1, Sara Ramos Lopes1, Madalena Teixeira1
1Gastroenterology, Centro Hospitalar de Setúbal, Portugal.
Abstract:
A 23-year-old male from Brazil presented with bright red hematochezia. Proctological examination revealed grade II internal hemorrhoids, but flexible sigmoidoscopy uncovered a 6 mm-pedunculated polyp in the sigmoid colon, which was found to result from inflammatory reaction to Schistosoma mansoni egg deposition. The patient had no signs of portal hypertension and was successfully treated with praziquantel. This case underscores a rare presentation of chronic intestinal schistosomiasis and emphasizes the role of early diagnosis in preventing severe hepatic sequelae of chronic Schistosoma infection.

