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Malassezia folliculitis or pityrosporum folliculitis, [1] is a skin condition caused by infection by Malassezia (formerly Pityrosporum) yeast. [2]: 314 The skin of the upper trunk area including the back, chest, arms and sometimes the neck is often affected and this condition is often seen in young to middle aged adults, although it has been known to occur in adults well into their sixties ...
Malassezia furfur (formerly known as Pityrosporum ovale) is a species of yeast (a type of fungus) that is naturally found on the skin surfaces of humans and some other mammals. It is associated with a variety of dermatological conditions caused by fungal infections , notably seborrhoeic dermatitis and tinea versicolor .
A 25-year-old man with pityrosporum folliculitis and electron micrograph of his skin, showing Malassezia spores [14] Malassezia folliculitis (also called pityrosporum folliculitis) [15] is caused by infection with Malassezia. [16]
[1] [14] In addition to the presence of Malassezia , genetic, environmental, hormonal, and immune-system factors are necessary for and/or modulate the expression of seborrhoeic dermatitis. [ 15 ] [ 16 ] The condition may be aggravated by illness, psychological stress, fatigue, sleep deprivation, change of season, and reduced general health.
Folliculitis is the infection and inflammation of one or more hair follicles. The condition may occur anywhere on hair-covered skin . The rash may appear as pimples that come to white tips on the face, chest, back, arms, legs, buttocks, or head.
Climbazole is a topical antifungal agent commonly used in the treatment of human fungal skin infections such as dandruff, seborrhoeic dermatitis and eczema. [2] Climbazole has shown a high in vitro and in vivo efficacy against Malassezia spp. that appear to play an important role in the pathogenesis of dandruff. [ 2 ]
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.
Pruritic folliculitis of pregnancy is a skin condition that occurs in one in 3000 people, about 0.2% of cases, who are in their second to third trimester of pregnancy where the hair follicle becomes inflamed or infected, resulting in a pus filled bump. [1]