Tinea manuum is frequently misdiagnosed because it appears similar to:
Tinea manuum can occur as an acute inflammatory rash like tinea corporis. There is usually a raised border and clearing in the middle (ringworm). This is most likely when a zoophilic (animal) or geophilic (soil) fungus is responsible. The likely fungi are:
More frequently, tinea manuum causes a slowly extending area of peeling, dryness and mild itching on the palm of one hand (hyperkeratotic tinea). Skin markings may be increased. Generally both feet appear similar ("one hand, two foot syndrome"). The usual cause is an anthropophilic (human) fungus:
These fungi may also cause a blistering rash on the edges of the fingers or palm. The blisters appear in crops and contain a sticky clear fluid. They may have a peeling edge. This form of tinea manuum itches and burns.
Tinea manuum results from:
Tinea manuum can be distinguished from hand dermatitis:
The diagnosis of tinea manuum is confirmed by microscopy and culture of skin scrapings.
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