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Tinea versicolor (also pityriasis versicolor) is a condition characterized by a skin eruption on the trunk and proximal extremities. [1] The majority of tinea versicolor is caused by the fungus Malassezia globosa , although Malassezia furfur is responsible for a small number of cases.
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.
Pityriasis versicolor, a skin eruption on the trunk and proximal extremities, usually caused by a fungus Dandruff , historically called Pityriasis capitis Pityriasis amiantacea , condition of the scalp in which thick tenaciously adherent scale infiltrates and surrounds the base of a group of scalp hairs
Signs and symptoms range widely. [3] There is usually a rash with superficial infection. [2] Fungal infection within the skin or under the skin may present with a lump and skin changes. [3] Pneumonia-like symptoms or meningitis may occur with a deeper or systemic infection. [2] Fungi are everywhere, but only some cause disease. [13]
[19] [20] Clinically, the diagnosis of any particular skin condition is made by gathering pertinent information regarding the presenting skin lesion(s), including the location (such as arms, head, legs), symptoms (pruritus, pain), duration (acute or chronic), arrangement (solitary, generalized, annular, linear), morphology (macules, papules ...
Pityriasis versicolor; Primary cutaneous aspergillosis; Primary cutaneous coccidioidomycosis; Primary cutaneous histoplasmosis; Primary pulmonary coccidioidomycosis; Primary pulmonary histoplasmosis; Progressive disseminated histoplasmosis; Proximal subungual onychomycosis
Toxicodendron dermatitis lesions are often linear from brushing up against the plant. Causes of the Koebner phenomenon that are secondary to scratching rather than an infective or chemical cause include vitiligo, psoriasis, lichen planus, lichen nitidus, pityriasis rubra pilaris, and keratosis follicularis (Darier disease). [citation needed]
Applied to the skin it is used for fungal skin infections such as tinea, cutaneous candidiasis, pityriasis versicolor, dandruff, and seborrheic dermatitis. [12] Taken by mouth it is a less preferred option and recommended for only severe infections when other agents cannot be used. [11]