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Mould Identification: A Virtual Self Assessment

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Unknown 51 = Lophophyton gallinae

Case History
Case History: A country veterinarian submitted some skin scrapings taken from the comb of a chicken. The fungus shown below was isolated.
Clinical Presentation
chicken

Chicken infection caused by Lophophyton gallinae.
Culture
Culture

Colonies (SDA) are flat with a suede-like texture and are white in colour with a pinkish tinge. Some cultures show radial folding. An orange-pink “strawberry-coloured” reverse pigment is usually present.
Microscopy
Microscopy

Macroconidia when present are usually five- to six-celled, thin to thick-walled, slightly echinulate, cylindrical to clavate with narrow base and blunt tip, 15-60 x 6-10 µm. Microconidia are ovoidal to pyriform in shape. RG-2 organism.
Comment: A zoophilic fungus causing fowl favus in chickens and other fowl, affecting the comb and wattles producing "white comb" lesions. A rare cause of tinea in human. Invaded hairs show a sparse ectothrix infection but do not fluoresce under Wood's ultra-violet light.

About Lophophyton Back to Virtual Assessment

What is your identification?

Nannizzia fulva
Lophophyton gallinae
Microsporum ferrugineum

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School of Biological Sciences
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THE UNIVERSITY OF ADELAIDE
SA 5005 AUSTRALIA

Contact

Dr David Ellis
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