Tinea cruris B35.8

Author: Prof. Dr. med. Peter Altmeyer

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Last updated on: 29.10.2020

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Synonym(s)

Lower leg mycosis; tinea cruris; Trichophytia chronic follicular of the lower leg; Trichophytia of the lower legs

Definition
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Tinea cruris describes a, mostly chronic dermatophyte infection of the lower legs (in the Anglo-American linguistic usage it is called Tinea corporis). The clinical picture is characterised by the duration of the infection, the immunological and local initial situation of the patient and the type of pathogen.

Etiopathogenesis
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Autoinoculation by shaving the hairs of the legs in case of pre-existing tinea unguium or tinea pedum. Traumatisation leads to follicular ruptures and dislocation of infected keratin particles into the dermis. From these dislocated keratin particles the "keratinophilic" dermatophytes draw their food reservoir.

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Manifestation
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Especially women are affected.

Localization
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Distal lower leg exteriors.

Clinical features
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Brownish to blue-reddish, pea-sized, follicularly bound, itchy, possibly confluent nodules with scaly ruffled edges.

Diagnosis
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Fungal detection in native preparation or culture. S.a.u. Mycoses.

Differential diagnosis
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Therapy
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In any case, local and systemic antimycotic therapy is recommended. S.a.u. Tinea.

Progression/forecast
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Highly chronic course.

Note(s)
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Probably the special clinical form of tinea cruris, tinea granulomatosa follicularis et nodularis cruris, is identical to the clinical picture described under"Granuloma trichophyticum (Majocchi)".

Literature
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  1. Gip L et al (1969) Tinea granulomatosa cruris. Acta Derm Venereol 49:517-518
  2. Meinhof W et al (1976) Multiple subcutaneous Trichophyton rubrum abscesses. Pathomorphosis of a generalized superficial tinea due to impaired immunological resistance. Dermatologist 27:318-327
  3. Moreno Giménez JC (1999) New clinical aspects of dermatomycosis. Rev Iberoam Micol 16:22-25

Disclaimer

Please ask your physician for a reliable diagnosis. This website is only meant as a reference.

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Last updated on: 29.10.2020