raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:352540

Oncogenic osteomalacia

Synonyms: Oncogenic hypophosphatemic osteomalacia · TIO · Tumor-induced osteomalacia

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

A rare paraneoplastic syndrome characterized by renal phosphate wasting and bone demineralization due to a phosphaturic mesenchymal tumor of the mixed connective tissue variant. It causes osteomalacia in adults with bone pain and pathological fractures, and rickets in children.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enOncogenic osteomalaciaOncogenic hypophosphatemic osteomalacia · TIO · Tumor-induced osteomalacia
frOstéomalacie oncogéniqueOstéomalacie hypophosphatémique oncogénique
deOsteomalazie, onkogeneOsteomalazie, hypophosphatämische onkogene · Osteomalazie, tumorinduzierte · TIO
esOsteomalacia oncogénicaOsteomalacia inducida por tumor · Osteomalacia oncogénica hipofosfatémica · TIO
itOsteomalacia oncogenicaOsteomalacia indotta da tumore · Osteomalacia ipofosfatemica oncogenica · TIO
nlOncogene osteomalacieOncogene hypofosfatemische osteomalacie · TIO · Tumorgeïnduceerde osteomalacia
ptOsteomalacia oncogénica
plOsteomalacja onkogenicznaOsteomalacja indukowana nowotworem · Osteomalacja onkogeniczna hipofosfatemiczna · TIO
csOnkogenní osteomalácieTIO · Osteomalacie indukovaná nádorem · Hypofosfatemická osteomalacie při onkologickém onemocnění
ukОнкогенна остеомаляціяОнкогенна гіпофосфатемічна остеомаляція · ТІО · Остеомаляція, спричинена пухлиною
zh致癌性骨软化症瘤源性低磷性骨软化症
trOnkojenik osteomalaziTIO · Tümör-ilişkili osteomalazi · Onkojenik hipofosfatemik osteomalazi

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10M83.8NTBTattributedvalidated
ICD-11FB80.YNTBTattributedvalidated
MONDO0018124Evalidated
MeSHC537751Evalidated
UMLSC1274103Evalidated
GARD9652Evalidated

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/families400 casesWorldwideCase(s)Validated23220596[PMID]
Point prevalence1-9 / 1 000 0000.7 / 100 000EuropeValue and classValidated33818653[PMID]_ORPHANET

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

35 annotations · validated 2024-09-23
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0003155Elevated circulating alkaline phosphatase concentration
HP:0003109Hyperphosphaturia
HP:0002148Hypophosphatemia
HP:0001324Muscle weakness
HP:0002756Pathologic fracture
HP:0000117Renal phosphate wasting
Frequent (79-30%)
HP:6000489Abnormal circulating fibroblast growth factor 23 concentration
HP:0002653Bone pain
HP:0006487Bowing of the long bones
HP:0002659Increased susceptibility to fractures
HP:0012052Low serum calcitriol
HP:0010622Neoplasm of the skeletal system
HP:0000121Nephrocalcinosis
HP:0002749Osteomalacia
HP:0003701Proximal muscle weakness
Occasional (29-5%)
HP:0002991Abnormal fibula morphology
HP:0001760Abnormal foot morphology
HP:0040163Abnormal pelvis bone morphology
HP:0002823Abnormality of femur morphology
HP:0001850Abnormality of the tarsal bones
HP:0010734Fibrous dysplasia of the bones
HP:0001288Gait disturbance
HP:0011847Giant cell tumor of bone
HP:0001510Growth delay
HP:0002901Hypocalcemia
HP:0004912Hypophosphatemic rickets
HP:0002808Kyphosis
HP:0012288Neoplasm of head and neck
HP:0000787Nephrolithiasis
HP:0002669Osteosarcoma
HP:0000768Pectus carinatum
HP:0002093Respiratory insufficiency
HP:0002982Tibial bowing
Very rare (<4-1%)
HP:0003468Abnormal vertebral morphology
HP:0030731Carcinoma

Run the differential on the 6 obligate / very frequent terms

Annotation source: 28123260[PMID]_31301876[PMID]_33328210[PMID]_30775554[PMID]_37935612[PMID]_36327295[PMID]

7

Sources for this card