Gastrointestinal zygomycosis due to Rhizopus microsporus var. rhizopodiformis as a manifestation of chronic granulomatous disease.

A case of gastrointestinal zygomycosis in a 10-month-old boy with chronic granulomatous disease (CGD) is presented. Zygomycetes are an uncommon cause of fungal disease in CGD patients and gastrointestinal zygomycosis has not been previously described in individuals with CGD. To improve outcome, a timely and correct diagnosis is of utmost importance.