dermatophytid

dermatophytid /der·ma·to·phy·tid/ (der″mah-tof´ĭ-tid) a secondary skin eruption that is an expression of hypersensitivity to infection by a dermatophyte, especially Epidermophyton, occurring on an area remote from the site of infection.

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der·ma·to·phy·tid (dûrm-t-ftd, -tf-td)

n.

An allergic manifestation of dermatophytosis characterized by lesions that begin as vesicles on the hands and arms and may spread widely but do not contain any of the fungus.

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dermatophytid

[dur′mətof′itid, dur′mətōfī′tid]

Etymology: Gk, derma + phyton, plant

an allergic skin reaction characterized by small vesicles and associated with dermatomycosis. The lesions result from sensitization to the infection elsewhere on the skin and do not contain fungi. See also dermatomycosis, dermatophyte.

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Ringworm

A skin infection by mould-like fungi known as dermatophytes—e.g., Trichophyton rubrum, T mentagrophytes, Microsporium canis, M gypsum, rarely also Epidermophyton spp; in children, T canis is the most common agent
DiffDx Nonfungal dermatopathies—e.g., erythema annulare, ‘herald patch’ of pityriasis rosea, atopic dermatitis, other dermatitides
Management Most resolve without therapy—otherwise, miconazole; if severe, griseofulvin

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dermatophytid [der″mah-tof´ĭ-tid]

a secondary skin eruption which is an expression of hypersensitivity to a dermatophyte, especially Epidermophyton, infection, occurring on an area remote from the site of infection, most commonly on the hands, wrists, and sides of the fingers in association with tinea pedis.

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dermatophytid

a secondary skin eruption which is an expression of hypersensitivity to a dermatophyte, occurring on an area remote from the site of infection. Called also an 'id' reaction.