raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:97346

ADan amyloidosis

Synonyms: Familial dementia, Danish type

Type
Clinical subtype
Group
Subtype of disorder
Inheritance
Autosomal dominant
Status
active

A rare, neurodegenerative disease characterized by progressive cataracts, hearing loss, cerebellar ataxia, paranoid psychosis and dementia. Neuropathological features are diffuse atrophy of all parts of the brain, chronic diffuse encephalopathy and the presence of extremely thin and almost completely demyelinated cranial nerves.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enADan amyloidosisFamilial dementia, Danish type
frAmylose ADanDémence familiale type danoise
deADan-AmyloidoseDemenz, familiäre, Dänischer Typ
esAmiloidosis ADanDemencia familiar tipo danesa
itAmiloidosi ADanDemenza familiare, tipo danese
nlADan-amyloïdoseFamiliale dementie, Deens type
ptDemência familiar, tipo dinamarquês
plAmyloidoza ADanRodzinna demencja, typ duński
csADan amyloidózaDánská familiární demence
ukАмілоїдоз AdanСімейна деменція датського типу
zhADan淀粉样变丹麦型家族性痴呆
trAD amiloidozAilesel demans, Danimarka tipi

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM117300Evalidated
ICD-10E85.4+NTBTattributedvalidated
ICD-10I68.0*NTBTattributedvalidated
ICD-115D00.2YNTBTindexvalidated
MONDO0007297Evalidated
MeSHC538209Evalidated
UMLSC1861735Evalidated
GARD9169Evalidated

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 (1):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
ITM2BDisease-causing germline mutation(s) inAssessedHGNC:6174ENSG0000013615660390413q14.2integral membrane protein 2B10781099[PMID]
5

Prevalence and incidence

0 records

No prevalence record in this release.

6

HPO phenotypes

Orphanet has no HPO annotation for this code in this release.

7

Sources for this card