Ultrasonographic Diagnosis ofSchistosoma mansoniEggs in Rectum

Abstract

Schistosomiasis is a trematode infection endemic in more than 70 countries that affects an estimated 250 million people. We report the case of a 60-year-old healthy female referred for endoscopic ultrasound after rectal examination revealed granular lesions. Ultrasound revealed the presence of deep mucosal nodular lesions with calcified/hyperechoic inclusions. Histologic evaluation has confirmed the final diagnosis of chronic schistosomal colitis. In patients with nonspecific intestinal lesions without a suspected diagnosis of schistosomiasis, endoscopic ultrasound can be enlightening. Schistosomiasis is still an endemic infection in some parts of Brazil and other tropical regions, causing colorectal lesions with unspecific presentation.

Radial Endoscopic Ultrasound for the Diagnosis of Chronic Schistosomiasis in the Colorectum

“…We show an ultrasonographic image of subepithelial protrusion caused by fibrous granulomatous tissue containing calcified S japonicum eggs. 2 For this patient, the multiple late chronic lesions required no further intervention. The patient was asked to be followed up for these protruded lesions.…”