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Tinea versicolor fluorescence under Wood's lamp. Tinea versicolor may be diagnosed by a potassium hydroxide (KOH) preparation and lesions may fluoresce copper-orange when exposed to Wood's lamp (UV-A light). [15] The differential diagnosis for tinea versicolor infection includes: [citation needed] Progressive macular hypomelanosis; Pityriasis alba
Tinea versicolor (also known as dermatomycosis furfuracea, pityriasis versicolor, and tinea flava) [2] is a condition characterized by a skin eruption on the trunk and proximal extremities, hypopigmentation macule in area of sun induced pigmentation. During the winter the pigment becomes reddish brown.
Dermatophytosis, also known as tinea and ringworm, is a fungal infection of the skin [2] (a dermatomycosis), that may affect skin, hair, and nails. [1] Typically it results in a red, itchy, scaly, circular rash. [1]
Wood's lamp (blacklight) examination will reveal a bright green to yellow-green fluorescence of hairs infected by Trichophyton mentagrophytes var. Mentagrophytes, in kerion infection caused by Trichophyton verrucosum Invaded hairs show an ectothrix infection and fluorescence under Wood's ultra-violet light has been noted in cattle but not in ...
However, a simple side-room investigation with a Wood's lamp is additionally useful in diagnosing erythrasma. [4] The ultraviolet light of a Wood's lamp causes the organism to fluoresce a characteristic coral red color, differentiating it from other skin conditions such as tinea versicolor , which may fluoresce a copper-orange color. [ 5 ]
Additionally, a Wood's lamp examination (ultraviolet light) may be used to diagnose specific dermatophytes that fluoresce. [11] Should there be an outbreak or if a patient is not responding well to therapy, sometimes a fungal culture is indicated. [3] A fungal culture is also used when long-term oral therapy is being considered. [11]
Tinea capitis, or scalp ringworm, is a fungal infection of the scalp hairs. Along with an uncomfortable rash, you might experience hair shedding and scarring alopecia, which is permanent hair loss ...
Athlete's foot, known medically as tinea pedis, is a common skin infection of the feet caused by a fungus. [2] Signs and symptoms often include itching, scaling, cracking and redness. [ 3 ] In rare cases the skin may blister . [ 6 ]