raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:163634

Maffucci syndrome

Synonyms: Enchondromatosis Spranger type II · Multiple Enchondromatosis type II · Multiple Enchondromatosis, Maffucci Type

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

A rare disorder characterized by multiple enchondromatosis associated with multiple (dark, irregularly shaped) hemangiomas. Less commonly, lymphangiomas are also reported.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enMaffucci syndromeEnchondromatosis Spranger type II · Multiple Enchondromatosis type II · Multiple Enchondromatosis, Maffucci Type
frSyndrome de MaffucciMultiple Enchondromatosis, type Maffucci
deMaffucci-Syndrom
esSíndrome de Maffucci
itSindrome di Maffucci
nlSyndroom van Maffucci
ptSíndrome de Maffucci
plZespół Maffuciego= en
csMaffucciho syndrom= en
ukСиндром МаффуччіЕнхондроматоз Шпрангера типу II · Множинний енхондроматоз II типу · Множинний енхондроматоз, тип Маффуччі
zhMaffucci 综合征
trMaffucci sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM614569Evalidated
ICD-10Q78.4NTBTinclusionvalidated
ICD-11LD2F.1YNTBTindexvalidated
MONDO0013808Evalidated
UMLSC0024454Evalidated
GARD6958Evalidated
MedDRA10083007Evalidated

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 (10):

No children.

4

Genes

2 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
IDH1Disease-causing somatic mutation(s) inAssessedHGNC:5382ENSG000001384131477002q34isocitrate dehydrogenase (NADP(+)) 122057234[PMID]_22057236[PMID]
IDH2Disease-causing somatic mutation(s) inAssessedHGNC:5383ENSG0000018205414765015q26.1isocitrate dehydrogenase (NADP(+)) 222057234[PMID]_22057236[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families250 casesWorldwideCase(s)ValidatedORPHANET
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET

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

24 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0007461Hemangiomatosis
HP:0005701Multiple enchondromatosis
HP:0002797Osteolysis
HP:0004936Venous thrombosis
Frequent (79-30%)
HP:0002653Bone pain
HP:0100777Exostoses
HP:0002650Scoliosis
HP:0004322Short stature
HP:0001482Subcutaneous nodule
Occasional (29-5%)
HP:0009592Astrocytoma
HP:0003002Breast carcinoma
HP:0100021Cerebral palsy
HP:0006765Chondrosarcoma
HP:0006824Cranial nerve paralysis
HP:0002015Dysphagia
HP:0000853Goiter
HP:0001510Growth delay
HP:0100641Neoplasm of the adrenal cortex
HP:0100733Neoplasm of the parathyroid gland
HP:0100615Ovarian neoplasm
HP:0002897Parathyroid adenoma
HP:0002893Pituitary adenoma
HP:0002757Recurrent fractures
HP:0100242Sarcoma

Run the differential on the 4 obligate / very frequent terms

7

Sources for this card