raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:1214

Progressive hemifacial atrophy

Synonyms: Hemifacial atrophy · PHA · Parry-Romberg syndrome · Progressive facial hemiatrophy · Romberg syndrome

Type
Disease
Group
Disorder
Inheritance
Not applicable
Age of onset
Adolescent, Adult, Childhood
Status
active

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.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enProgressive hemifacial atrophyHemifacial atrophy · PHA · Parry-Romberg syndrome · Progressive facial hemiatrophy · Romberg syndrome
frAtrophie hémifaciale progressiveAtrophie hémifaciale · Hémiatrophie faciale progressive · Syndrome de Parry-Romberg · Syndrome de Romberg
deHemiatrophia facialis progressivaParry-Romberg-Syndrom
esAtrofia hemifacial progresivaSíndrome de Parry-Romberg
itAtrofia emifacciale progressivaSindrome di Parry Romberg
nlProgressieve hemifaciale atrofieHemifaciale atrofie · PHA · Progressieve faciale hemiatrofie · Syndroom van Parry-Romberg · Syndroom van Romberg
ptAtrofia hemifacial progressivaSíndrome Parry-Romberg
plPostępujący zanik połowiczy twarzyZespół Parry'ego i Romberga
csProgresivní hemifaciální atrofieHemifaciální atrofie · PHA · Parryho-Rombergův syndrom · Progresivní hemiatrofie obličeje · Rombergův syndrom · Parry-Rombergův syndrom
ukПрогресуюча геміфаціальна атрофіяНапівлицьова атрофія · Синдром Паррі-Ромберга · PHA · Прогресуюча геміатрофія обличчя · Синдром Ромберга
zh进行性半侧颜面萎缩进行性半侧颜面萎缩
trİlerleyici hemifasiyal atrofiPHA · Romberg sendromu · Hemifasiyal atrofi · Parry-Romberg sendromu · ilerleyici fasiyal hemiatrofisi

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM141300Evalidated
ICD-10G51.8NTBTindexvalidated
ICD-11EB61.YNTBTindexvalidated
MONDO0007710Evalidated
MONDO7710Evalidated
UMLSC0015458Evalidated
GARD7338Evalidated
MedDRA10073006Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (7):

No children.

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Point prevalenceUnknown—WorldwideClass onlyNot yet validatedORPHANET
Point prevalence1-9 / 1 000 0000.143 / 100 000United StatesValue and classValidated12963760[PMID]_[EXPERT]

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

6

HPO phenotypes

11 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0000277Abnormality of the mandible
HP:0000324Facial asymmetry
HP:0007400Irregular hyperpigmentation
HP:0000347Micrognathia
Frequent (79-30%)
HP:0003011Abnormality of the musculature
HP:0008065Aplasia/Hypoplasia of the skin
HP:0100555Asymmetric growth
HP:0001250Seizure
Occasional (29-5%)
HP:0000490Deeply set eye
HP:0001100Heterochromia iridis
HP:0000508Ptosis

Run the differential on the 4 obligate / very frequent terms

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Sources for this card