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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 clinically distinguished from hand dermatitis.
The diagnosis of tinea manuum is confirmed by microscopy and culture of skin scrapings (see laboratory tests for fungal infection).
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