#psoriasis__psoriasi  a chronic skin disease characterized by dry red patches covered with scales; occurs especially on the scalp and ears and genitalia and the skin over bony prominences
  supertype:  skin_disease__disease_of_the_skin__skin_disorder__skin_problem__skin_condition  a disease affecting the skin
  part:  acanthosis  an abnormal but benign thickening of the prickle-cell layer of the skin (as in psoriasis)

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