Folliculitis granulomatosa perforans L73.8

Author: Prof. Dr. med. Peter Altmeyer

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Last updated on: 29.10.2020

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History
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Bar roof, 1979

Definition
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Granulomatous folliculitis with partial destruction of the hair follicle gland complex and occasional perforation of parts of the hair by the infundibular epithelium Probably identical with perforating folliculitis. The term has not found further spread in later literature.

Localization
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Extended limb sides, trunk.

Clinical features
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Follicularly bound, maximum 2-3 mm large, mostly erythematous papules with a white-grey, keratotic plug.

Histology
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Follicular hyperkeratosis, cup-shaped dilatation of the infundibulum. The follicles are deformed, atrophy and perforation of the follicular wall are visible. Numerous hairline incisions and perifollicular granulomas are visible in the horn plug.

Differential diagnosis
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Therapy
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According to the folliculitis, perforating.

Literature
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  1. Bardach H.(1979) Folliculitis granulomatosa perforans profunda: an independent perforating dermatosis? dermatologist 30:489-493

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Last updated on: 29.10.2020