Etiologie (pour les professionnels) (en anglais)

Etiology (For Professionals) The origin and cause of SK is to the best of our knowledge unknown and what follows below is a list of proposed hypotheses. Origin of SK Hair follicle epithelium Whatever, the triggers and mechanisms of pathogenesis of seborrheic keratosis, they seem to develop from the follicular epithelium.This hypothesis come from the…

Les kératoses séborrhéiques (verrues séborréiques)(verrues séniles)(taches de vieillesse)

Melasma (Chloasma) (Masque de Grossesse): éléments diagnostics, épidémiologiques et importance de la protection solaire

Skin color is determined by: The type of melanin The amount of melanin in melanocytes The distribution pattern in surrounding keratinocytes   The term melasma comes from Greek melas: black Etiology: The exact cause is unknown but some factors play a role Ultraviolet light (UV) genetic factors thyroid disturbances cosmetics hormonal factors (in females) Epidemiology…

Notes de congrès/conférences

Tokelau (Dermatophytose imbriquée): Causes (étiologie)

Causes

  • The condition is caused by a strictly anthropophilic dermatophyte called tinea concentricum.
  • Transmission is incompletely understood. Close contact is important but not enough and genetic (mode of inheritance mainly autosomal recessive (“pure race”) with a few autosomal dominant cases), environmental (poor hygiene, iron deficiency, malnutrition) and immunological factors play an important role.

Bibiography

Tokelau (Dermatophytose imbriquée)