facial nerve disorder syndromic disease facial hemiatrophy https://github.com/monarch-initiative/mondo/issues/6748 https://www.malacards.org/card/facial_hemiatrophy https://www.malacards.org/card/hemifacial_atrophy_progressive NCIT:C116916 UMLS:C0015458 Romberg syndrome Progressive hemifacial atrophy (PHA) is a rare acquired disorder, characterized by unilateral slowly progressive atrophy of the skin and soft tissues of half of the face leading to a sunken appearance. Muscles, cartilage and the underlying bony structures may also be involved. hemifacial atrophy Orphanet:1214 OMIM:141300 progressive hemifacial atrophy GARD:0007338 This term's classification was reviewed in the context of the Strategic Refinement project (2023) and was determined to be excluded from the 'inflammatory disease' (MONDO:0021166) ontology branch (https://orcid.org/0000-0003-4830-7530, https://orcid.org/0000-0001-9310-0163) MONDO:0007710 PHA HFA hemifacial atrophy, progressive MEDGEN:8761 SCTID:718224004 DOID:1757 progressive facial hemiatrophy parry-Romberg syndrome MESH:D005150 Romberg hemi-facial atrophy