Introduction Clinical Presentation Definition Distribution Etiology Index of Names Media & Methods Glossary Case Study References

Microsporum ferrugineum

Photographs of Microsporum ferrugineum are not available
Colonial Morphology	Microscopic Morphology Phase Contrast	Biochemical Reactions: BCP, SDA and Urease
Growth rate: slow Texture: glabrous to downy, heaped Thallus color: yellow to rusty orange, subcultures become cream to buff Reverse: rusty to no pigment Difficult to maintain pigment in lab	rough walled macroconidia induced on thiamine, otherwise absent no microconidia many chlamydospores distorted faviform hyphae long straight hyphae with thick septa resembling bamboo	BCP: slow, no change Urease: negative Hair perforation: negative Lowenstein-Jensen: pale yellow Vitamin requirements: none
Compare to and Differentiate from: T. verrucosum: vitamin requirements T. soudanense: BCP, yellow on Lowenstein-Jensen M. canis: microscopic, hair perforation	Etiology & Ecology anthrophilic Asia, Africa, Eastern Europe, rare in western hemisphere except Brasil etiology of other dermatophytes