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11 May 2021: Articles

Colorectal Schistosomiasis Infection After Cytoreductive Surgery and Hyperthermic Intraperitoneal Chemotherapy for Recurrent Metastatic Colon Adenocarcinoma: A Case Report

Challenging differential diagnosis, Rare coexistence of disease or pathology

Sulaiman AlShammari A* , Ashwaq Almajed B , Retaj Alkhawaja E , Turki Alshammari B , Riyadh Hakami F , Sufia Husain B , Thamer Bin Traiki F

DOI: 10.12659/AJCR.930439

Am J Case Rep 2021; 22:e930439

Figure 3. (A–D) Photomicrographs from a colonoscopic rectal biopsy shows several Schistosoma eggs (arrows) embedded in the lamina propria of the rectal mucosa. The Schistosoma eggs are yellowish brown, elongated to ovoid with a refractile shell. The large eccentric lateral spine projecting near one end (arrowhead) is a characteristic feature of a Schistosoma mansoni eggs. In addition, the rectal mucosa shows mild hyalinization of the lamina propria with mild chronic inflammation, edema, and extravasated red blood cells. There is no dysplasia or invasive carcinoma seen. This biopsy was diagnosed as schistosomiasis of the large intestine in which the location and histomorphology of the eggs are consistent with Schistosoma mansoni infection (hematoxylin and eosin stain, original magnification ×100, ×200, ×400, and ×600, respectively).

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American Journal of Case Reports eISSN: 1941-5923
American Journal of Case Reports eISSN: 1941-5923