keratosis porokeratosis https://www.malacards.org/card/porokeratosis SCTID:400080004 Orphanet:79358 icd11.foundation:29524620 ICD9:757.39 MEDGEN:56518 EFO:1000757 A clonal proliferation of abnormal keratinocytes characterized by the development of localized or multiple atrophic skin patches surrounded by an annular keratotic ring called cornoid lamella. GARD:0018989 MONDO:0006602 porokeratosis (disease) OMIMPS:175800 DOID:3805 porokeratosis (disease) NCIT:C85019 porokeratosis MedDRA:10036175 HP:0200044 UMLS:C0162839 MESH:D017499 Wikipedia:Porokeratosis epidermal disease hereditary skin disorder