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Case Reports
. 2007 Aug;111(Pt 8):926-30.
doi: 10.1016/j.mycres.2007.06.009. Epub 2007 Jun 29.

Histological and ultrastructural features of gastrointestinal basidiobolomycosis

Affiliations
Case Reports

Histological and ultrastructural features of gastrointestinal basidiobolomycosis

Mahmoud R Hussein et al. Mycol Res. 2007 Aug.

Abstract

Basidiobolus ranarum is a fungus found in the dung of amphibians, reptiles, and insectivorous bats. Its structural elements include both hyphae and zygospores. Patients with B. ranarum infection may present with subcutaneous, gastrointestinal, or systemic lesions. Here we report a case of gastrointesinal badidiomycosis in a 13-year-old male child who presented with acute abdomen. Exploration revealed a mass in the ascending colon. On histology, transmural granulomatous inflammation composed of abundant eosinophils, lymphocytes, histiocytes and giant cells was seen. Histochemical stains revealed broad, non-septate, hyphae-like structures surrounded by an eosinophilic sheath. On an ultrastructural level, fungal hyphae, spores, and macrophage-laden crystalloids were observed. The diagnosis of gastrointestinal basidiobolomycosis was established and the patient received antifungal treatment. This paper reviews the relevant literature regarding basidiomycosis, and discusses its diverse clinicopathological features, as well as distinguishing it from other diseases.

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