Isolation of Rhizopus microsporus var. rhizopodiformis in the ulcer of human gastric carcinoma.

Gastric zygomycosis in a patient with gastric cancer was described. Colonization was diagnosed because broad sparsely septate hyphae were identified in the necrotic tissue of gastric biopsied specimens. No fungus was present within viable tissue. Positive cultures for Rhizopus microsporus var. rhizopodiformis were obtained from fragments of biopsied specimens. Members of the Mucorales have rarely been isolated from the culture of endoscopically biopsied materials.