porokeratosis porokeratosis plantaris palmaris et disseminata https://github.com/monarch-initiative/mondo/issues/4521 https://www.malacards.org/card/porokeratosis_2_palmar_plantar_and_disseminated_type OMIM:175850 POROK2 Orphanet:737 porokeratosis 2, palmar, plantar, and disseminated porokeratosis 2, palmar, plantar, and disseminated type GARD:0016542 porokeratosis plantaris palmaris et disseminata MONDO:0008291 SCTID:718218005 palmar, plantar and disseminated porokeratosis MEDGEN:56517 UMLS:C0162838 Porokeratosis plantaris palmaris et disseminata (PPPD) is a rare form of porokeratosis occurring mainly in adolescence and characterized by small pruritic or painful keratotic papules that first appear on the palms and soles, and may gradually become generalized.