Adamantinoma

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Adamantinoma

ORPHA:55881Disease

Also called Adamantinoma of long bones

What it is

A rare, primary low-grade malignant bone tumor that occurs in more than 80% of cases on the anterior surface of the tibia (tibial dyaphysis). Most cases are symptomatic or present with pain, swelling, bowing deformity or pathological fracture. Metastases especially in the lungs may be observed.

Key facts

Prevalence
1-9 / 1 000 000 (lifetime)
Age of onset
Adolescent, Adult, Childhood
Inheritance
Not applicable
Classified as
Disease

Prevalence figures describe populations, not individuals, and are often estimates from a single study. Where the figure is an incidence or a birth prevalence, it says so.

Signs and symptoms

Common30–79%

1

These ranges are how often a sign appears across everyone diagnosed, not a prediction for one person — most people have some of these and not others. Orphanet also records findings that are specifically absent in this disease; those are in the data but not listed here.

ICD-10 codes

C40.2filed under a broader ICD-10 category — shared with 1 other rare disease

ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.

Related health topics

Reached through the ICD-10 categories this disease is filed under, so these describe the broader group rather than this disease specifically.

Cross-references

MESH D050398MONDO 0002422OMIM 102660UMLS C0334556

Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.

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