Exothrix refers to Dermatophyte infections of the hair that infect the hair surface. This is in contrast to Endothrix, where a Dermatophyte mainly invades the hair shaft. Using an ultraviolet Wood's lamp, endothrix infections will not fluoresce whereas exothrix infections will.
| Superficial and cutaneous (dermatomycosis): Tinea = skin; Piedra (exothrix/ endothrix) = hair |
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| Subcutaneous, systemic, and opportunistic |
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| Mesomycetozoea | |||||||||||||||||||||||
| Ungrouped | |||||||||||||||||||||||