Dermatology and aesthetics
HairWhen hair is lost: problems, pathologies, types Alopecia: classification according to the cause Diagnosis Treatment
- When hair is lost: problems, pathologies, types
- Alopecia: classification according to the cause
From a clinical point of view, the destruction of the tissue in the form of atrophy and scarring is evident. Different varieties of cicatricial alopecia are distinguished, and in particular congenital and acquired forms.
Congenital atrichia (autosomal recessive condition that determines the absence of hair follicles in adults), hypotrichosis, associated with other defects in various hereditary syndromes (atrichia with keratin cysts, ectodermal hydrotic dysplasia, progeria, syndrome) of Moynahan, Baraitser syndrome) and moniliform aplasia.
As regards the acquired scarring alopecia, these are distinguished on the basis of the trigger, which can be physical (trauma, X-rays, wounds), chemical (acids, alkalis), biotic (herpes zoster, leprosy, tuberculosis, syphilis secondary and tertiary, fungal infection), dermatological (current or previous dermatosis such as lupus erythematosus, scleroderma, skin tumors, granulomas, sarcoidosis, keloids, Brocq pseudoarea, lichen) or finally psychosomatic (pathomimias, neurotic excoriations).
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