raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:1467

Cogan syndrome

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

A rare inflammatory/autoimmune disorder of unknown origin characterized by interstitial keratitis (IK) and audiovestibular dysfunctions.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enCogan syndrome
frSyndrome de Cogan
deCogan-Syndrom
esSíndrome de Cogan
itSindrome di Cogan
nlSyndroom van Cogan
ptSíndrome Cogan
plZespół Cogana
csCoganův syndrom
ukСиндром Когана
zhCogan综合征
trCogan sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10H16.3NTBTindexvalidated
ICD-114A44.YNTBTindexvalidated
MONDO0015453Evalidated
MeSHD055952Evalidated
UMLSC0271270Evalidated
GARD1421Evalidated
MedDRA10056667Evalidated

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 (4):

No children.

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families300 casesWorldwideCase(s)Validated18037121[PMID]
Point prevalence1-9 / 1 000 0000.15 / 100 000WorldwideValue and classValidatedORPHANET

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

20 annotations · validated 2016-07-22
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0001751Abnormal vestibular function
HP:0000491KeratitisDiagnostic criterion
HP:0000613Photophobia
HP:0007663Reduced visual acuity
HP:0000360TinnitusDiagnostic criterion
HP:0002321VertigoDiagnostic criterion
Frequent (79-30%)
HP:0001903Anemia
HP:0003565Elevated erythrocyte sedimentation rate
HP:0001974Increased total leukocyte count
HP:0100533Inflammatory abnormality of the eye
HP:0000407Sensorineural hearing impairment
HP:0001894Thrombocytosis
Occasional (29-5%)
HP:0001659Aortic regurgitation
HP:0000618Blindness
HP:0000509Conjunctivitis
HP:0100534Episcleritis
HP:0005310Large vessel vasculitis
HP:0100532Scleritis
HP:0000554Uveitis
HP:0002633Vasculitis

Run the differential on the 6 obligate / very frequent terms

Annotation source: 25854487[PMID]_3486332[PMID]_6969345[PMID]

7

Sources for this card