obsolete_X-linked erythropoietic protoporphyria true 3.88.0 X-linked dominant protoporphyria X-linked erythropoietic protoporphyria (XLEPP) is a metabolic disorder of heme biosynthesis characterized by onset in early childhood of severe photosensitivity associated with decreased iron stores and increased erythrocyte zinc- and metal-free protoporphyrin. Some patients may develop liver disease or gallstones (summary by Ducamp et al., 2013). XLP Orphanet:443197 X-linked dominant erythropoietic protoporphyria OMIM:300752 http://purl.obolibrary.org/obo/MONDO_0010420 Hannah McLaren XLPP XLEPP XLDPP Replaced by Mondo term MONDO_0010420, with which this term was previously merged. Use: http://purl.obolibrary.org/obo/MONDO_0010420 UMLS:C2677889