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Erschienen in:
01.11.2022 | Images in Surgery
An Excellent Mimicker: Schistosoma Japonicum
Erschienen in: Indian Journal of Surgery | Ausgabe 4/2023
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Schistosomiasis is mainly caused by Schistosoma japonicum worms in the drainage areas of the Yangtze River of China [1]. Symptoms depend on the immune response to parasitic eggs, and most patients infected are asymptomatic [2]. The morphology of the ovum is required for specific diagnosis [3]. We screened healthy individuals who received colonoscopy examination during a health check-up in the past year. Interestingly enough, rarely abnormal colonic lesions were found, such as mucosal protrusions (Fig. 1A, B), patchy mucosal congestion and erosions (Fig. 1C), moderately protuberant ulcer (Fig. 1D), and polyps (Fig. 1E). Finally, the diagnosis of chronic Schistosoma japonicum was confirmed on histopathology of the mucosa showing calcified egg nodules and granulomatous lesions (Fig. 1F). All of them received the treatment of praziquantel.
Fig. 1
Mucosal protrusions (A, B), patchy mucosal congestion and erosions (C), moderately protuberant ulcer (D), and polyps (E) were found by colonoscopy examination. The histopathology of the mucosa showed calcified egg nodules and granulomatous lesions (F)
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