raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:180

Choroideremia

Synonyms: CHM · Tapetochoroidal dystrophy

Type
Disease
Group
Disorder
Inheritance
X-linked recessive
Age of onset
Adolescent, Adult, Childhood
Status
active

Choroideremia (CHM) is an X-linked chorioretinal dystrophy characterized by progressive degeneration of the choroid, retinal pigment epithelium (RPE) and retina.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enChoroideremiaCHM · Tapetochoroidal dystrophy
frChoroïdérémieCHM
deChorioideremieCHM · Dystrophie, tapetochoroidale
esCoroideremiaCHM · Distrofia tapetocoroidal
itCoroideremiaCHM · Distrofia del tappeto della coroide
nlChoroïderemieCHM · Tapetochoroïdale dystrofie
ptCoroideremia
plChoroideremiaCHM
csChoroiderémieCHM · Tapetochoroidální dystrofie
ukХороїдереміяCHM · Тапетохороїдальна дистрофія
zh无脉络膜症脉络膜毯层营养不良
trKoroideremiCHM · Tapetokoroidal distrofi

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM303100Evalidated
ICD-10H31.2NTBTinclusionvalidated
ICD-119B61NTBTindexvalidated
MONDO0010557Evalidated
MeSHD015794Evalidated
UMLSC0008525Evalidated
GARD6061Evalidated
MedDRA10008791Evalidated

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 (2):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
CHMDisease-causing germline mutation(s) inAssessedHGNC:1940ENSG00000188419300390Xq21.2CHM Rab escort protein
5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalence1-9 / 100 0002 / 100 000EuropeValue and classValidatedEuropean Medicines Agency 2014[OTHER]

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

15 annotations · validated 2024-06-06
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0000512Abnormal electroretinogram
HP:0007703Abnormality of retinal pigmentation
HP:0000545Myopia
HP:0000662Nyctalopia
HP:0000505Visual impairment
Frequent (79-30%)
HP:0001139Choroideremia
HP:0001133Constriction of peripheral visual field
HP:0007994Peripheral visual field loss
HP:0000529Progressive visual loss
Occasional (29-5%)
HP:0030602Abnormal fundus autofluorescence imaging
HP:0000533Chorioretinal atrophy
HP:0011506Choroidal neovascularization
HP:0000551Color vision defect
HP:0040049Macular edema
HP:0007787Posterior subcapsular cataract

Run the differential on the 5 obligate / very frequent terms

Annotation source: 30627697[PMID]_20301511[PMID]_31819346[PMID]

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Sources for this card