Axillary trichobacteriosis L08.8

Author: Prof. Dr. med. Peter Altmeyer

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Last updated on: 18.12.2020

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Synonym(s)

axillary trichomycosis; trichobacteriosis palmellina; trichomycosis palmellina; trichomycosis palmellina flava; Trichomycosis palmellina nigra; Trichomycosis palmellina rubra; Trichonocardiosis

Definition
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Harmless, only olfactorically challenging, globally occurring, extensive colonisation of the axillary hair with corynebacteria in people with hyperhidrosis axillaris and lack of personal hygiene.

Pathogen
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Corynebacterium tenuis.

Etiopathogenesis
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The corynebacteria, which belong to the normal flora of the skin, form dense yellowish colonies in the case of inadequate hygiene, hyperhidrosis and damp heat, which envelop the hair shaft like a cuff.

Manifestation
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Men are more frequently affected than women.

Localization
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Underarm hair, rarely pubic hair.

Clinical features
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Difficult to strip off, hair-enveloping coatings of yellow (Trichomycosis palmellina flava), red (Trichomycosis palmellina rubra) or black (Trichomycosis palmellina nigra) colour. Mostly penetrating axillary sweat smell. S.a.u. Bromhidrosis.

The clinical combination of Trichobacteriosis axillaris with Keratoma sulcatum and Erythrasma is not uncommon.

Diagnosis
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Clinical, microscopic or bacteriological pathogen detection.

External therapy
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Adequate personal hygiene using cleansing disinfectants or acidic syndets (e.g. Sebamed liquid, Dermowas). In stubborn cases, shaving of the hair, use of deodorants for hyperhidrosis, frequent change of underwear, use of natural fibre textiles.

Literature
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  1. Rho NK et al (2008) A corynebacterial triad: Prevalence of erythrasma and trichomycosis axillaris in soldiers with pitted keratolysis. J Am Acad Dermatol 58 (2 Suppl):S57-558

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Last updated on: 18.12.2020