Case report. Localized pulmonary zygomycosis without pre-existing immunocompromised status.

Pulmonary zygomycosis rarely occurs without pre-existing immunocompromised disease. A 72-year-old male was found to have a nodular shadow (3 cm x 4 cm) in the right S8 and S9 on a chest X-ray. Right lower lobectomy was performed and histological examination of the resected material demonstrated pulmonary zygomycosis. Hyphae stained positively not only with Grocott-Gomori methenamine silver staining, but also with an anti-Rhizopus oryzae polyclonal antibody.