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The page below is a sample from the LabCE course Fungal Infections in Humans. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.

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Trichosporon spp. is characterized by the production of true hyphae and pseudohyphae, arthroconidia and blastoconidia. There are six species of clinical significance: T. asahii, T. inkin, T. mucoides, T. cutaneum, T. ovoides, and T. asteroides. T. asahii, T. inkin, and T. mucoides are the most commonly isolated of the six species.
Trichosporon was initially recognized as the cause of white piedra, a superficial infection of the hair shaft of the scalp, face, axiallary, or pubic regions, characterized by soft white, yellow, green, or beige nodules composed of hyaline septate hyphae and arthroconidia. The disease occurs worldwide but occurs more commonly in tropical or subtropical regions.
The top right image is of a hair shaft infected with Trichosporon. The bottom right image is a lactophenol cotton blue microscopic image of Trichosporon.