Unusual presentation of Gastrointestinal Basidiobolomycosis in a 7-year-old Child – Case Report

Gastrointestinal basidiobolomycosis (GIB) is a rare fungal infection caused by basidiobolus ranarum. It has been recognized increasingly in the southern region of Saudi Arabia. Here, we report an unusual case of pediatric GIB with anorectal involvement in a 7-year-old Yemeni boy living in the south of Saudi Arabia. He had abdominal pain, abdominal distension, rectal bleeding, weight loss, perianal swelling and redness, and peripheral eosinophilia. The abdominal computed tomographic (CT) scan revealed significant wall thickness of the rectum. Histopathological findings of full thickness biopsy were consistent with basidiobolomycosis. The patient was treated with voriconazole and showed marked improvement. This case highlights the importance of considering GIB in children presenting with bleeding per rectum and eosinophilia associated with anorectal mass.