"Pityriasis Lichenoides"^^ . "C0162853"^^ . "Disease or Syndrome"^^ . "Pityriasis Lichenoides"^^ . . . . . "Pityriasis LichenoidesPTNCI" . "A rare cutaneous disorder of unknown etiology that can present either as an acute condition, with multiple papular lesions which become vesicular and necrotic (pityriasis lichenoides et varioliformis acuta) or chronic, with small, scaling papules (pityriasis lichenoides chronica).NCI" . "C85013"^^ .