The infection is diagnosed by close examination of the hair shafts where brown to yellow material called concretions are seen. There is usually an associated rancid odour. A microscopic examination can confirm the diagnosis, but this is rarely needed. Some patients with excessive sweating present the so-called corynebacterial triad, that is, the simultaneous presence of<unk> , erythrasma, and pitted keratolysis.
Trichobacteriosis axillaris
Trichomonas tenax
Alternaria tenuissima
Mycobacterium lepromatosis
Herpes gladiatorum
Epidermophyton floccosum
Elephantiasis nostras
Microsporum gypseum