raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:667

Autosomal recessive malignant osteopetrosis

Synonyms: Infantile malignant osteopetrosis

Type
Malformation syndrome
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Infancy, Neonatal
Status
active

A rare congenital disorder of bone resorption characterized by generalized skeletal densification.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enAutosomal recessive malignant osteopetrosisInfantile malignant osteopetrosis
frOstéopétrose maligne autosomique récessiveOstéopétrose maligne infantile
deOsteopetrose, maligne, autosomal-rezessive FormOsteopetrose, infantile maligne
esOsteopetrosis maligna autosómica recesivaOsteopetrosis maligna del lactante
itOsteopetrosi maligna autosomica recessivaOsteopetrosi maligna infantile
nlAutosomaal recessieve maligne osteopetroseInfantiele maligne osteopetrose
ptOsteopetrose maligna autossómica recessivaOsteopetrose maligna infantil
plAutosomalna recesywna osteopetroza złośliwaDziecięca osteopetroza złośliwa
csAutozomálně recesivní maligní osteopetrózaDětská maligní osteopetróza
ukАутосомно-рецесивний злоякісний остеопетрозІнфантильний злоякісний остеопетроз
zh常染色体隐性恶性型骨硬化症婴儿恶性石骨症
trOtozomal resesif habis osteopetrozİnfantil habis osteopetroz

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM259700BTNTvalidated
OMIM259710BTNTvalidated
OMIM259720BTNTvalidated
OMIM611490BTNTvalidated
OMIM615085BTNTvalidated
ICD-10Q78.2NTBTattributedvalidated
ICD-11LD24.10NTBTindexvalidated
MONDO0019026Evalidated
UMLSC1318518Evalidated

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 (3):

No children.

4

Genes

5 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
TCIRG1Disease-causing germline mutation(s) (loss of function) inAssessedHGNC:11647ENSG0000011071960459211q13.2T cell immune regulator 1, ATPase H+ transporting V0 subunit a320424301[PMID]_15300850[PMID]_21042819[PMID]_23877423[PMID]
CLCN7Disease-causing germline mutation(s) inAssessedHGNC:2025ENSG0000010324960272716p13.3Cl-/H+ antiporter 722419446[PMID]_20424301[PMID]_20301306[PMID]_23877423[PMID]
OSTM1Disease-causing germline mutation(s) inAssessedHGNC:21652ENSG000000810876076496q21osteoclastogenesis associated transmembrane protein 115177004[PMID]
SNX10Disease-causing germline mutation(s) inAssessedHGNC:14974ENSG000000863006147807p15.2sorting nexin 1022499339[PMID]_23877423[PMID]
TNFSF11Disease-causing germline mutation(s) inAssessedHGNC:11926ENSG0000012065960264213q14.11TNF superfamily member 1117632511[PMID]_23877423[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Prevalence at birth1-9 / 1 000 0000.75 / 100 000EuropeValue and classNot yet validatedORPHANET
Point prevalence1-9 / 1 000 000—EuropeClass onlyNot yet validatedORPHANET

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

43 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0008066Abnormal blistering of the skin
HP:0000944Abnormal metaphysis morphology
HP:0000772Abnormal rib morphology
HP:0005930Abnormality of epiphysis morphology
HP:0010719Abnormality of hair texture
HP:0001939Abnormality of metabolism/homeostasis
HP:0100022Abnormality of movement
HP:0004370Abnormality of temperature regulation
HP:0000649Abnormality of visual evoked potentials
HP:0001903Anemia
HP:0002653Bone pain
HP:0006487Bowing of the long bones
HP:0002257Chronic rhinitis
HP:0001363Craniosynostosis
HP:0000684Delayed eruption of teeth
HP:0001510Growth delay
HP:0000365Hearing impairment
HP:0002240Hepatomegaly
HP:0000238Hydrocephalus
HP:0002716Lymphadenopathy
HP:0000256Macrocephaly
HP:0000774Narrow chest
HP:0000639Nystagmus
HP:0010543Opsoclonus
HP:0007807Optic nerve compression
HP:0011002Osteopetrosis
HP:0000388Otitis media
HP:0000980Pallor
HP:0006323Premature loss of primary teeth
HP:0002757Recurrent fractures
HP:0002205Recurrent respiratory infections
HP:0004349Reduced bone mineral density
HP:0001744Splenomegaly
HP:0001337Tremor
HP:0000505Visual impairment
Occasional (29-5%)
HP:0001641Abnormal pulmonary valve morphology
HP:0002104Apnea
HP:0000978Bruising susceptibility
HP:0006824Cranial nerve paralysis
HP:0002901Hypocalcemia
HP:0002148Hypophosphatemia
HP:0002092Pulmonary arterial hypertension
HP:0004415Pulmonary artery stenosis

Run the differential on the 12 obligate / very frequent terms

7

Sources for this card