Skin infection
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A skin infection is an infection of the skin in humans and other animals, that can also affect the associated soft tissues such as loose connective tissue and mucous membranes. They comprise a categor
Example of cellulitis showing 3+ edema of left leg
Trichophyton rubrum
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Trichophyton rubrum is a dermatophytic fungus in the phylum Ascomycota. It is an exclusively clonal, anthropophilic saprotroph that colonizes the upper layers of dead skin, and is the most common caus
Bottom view of a Sabouraud agar plate with a colony of Trichophyton rubrum var. rodhainii.
Colonies of T. rubrum isolated from toenail (left to right): Primary isolation from scrapings on Sabouraud's dextrose agar with cycloheximide, chloramphenicol and gentamicin (14 d); Greenish colonies on Littman Oxgall agar (14 d); Restricted, red colony without pH change on Bromocresol Purple Milk Solids Glucose agar (10 d).
Colonies of T. mentagrophytes (left), T. rubrum (center) and T. violaceum (right) showing differential responses on Bromocresol Purple Milk Solids Glucose agar (7 d). T. mentagrophytes shows unrestricted growth with alkaline (purple) colour change, T. rubrum shows restricted growth with no pH change, and T. violaceum produces weak growth accompanied by clearing of the milk solids and a purple colour change.