#dermatosis  disorder involving lesions or eruptions of the skin (in which there is usually no inflammation)
  supertype:  #skin_disease__disease_of_the_skin__skin_disorder__skin_problem__skin_condition  a disease affecting the skin
  subtype:  #pityriasis  any of several skin disorders characterized by shedding dry flakes of skin
     subtype:  #dandruff.pityriasis  a condition in which white scales of dead skin are shed by the scalp
     subtype:  #pityriasis_alba  common form of pityriasis (usually in children or young adults) characterized by round patches of depigmentation
     subtype:  #pityriasis_rosea  pityriasis in which an itchy rash develops over the trunk and extremities

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