Fibroblastic rheumatism

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Fibroblastic rheumatism

ORPHA:477650Disease

What it is

A rare rheumatologic disease characterized by sudden onset of symmetric inflammatory distal polyarthritis and multiple firm cutaneous nodules with predilection for the upper and lower extremities. Patients often develop sclerodactyly and joint contractures. Skin biopsy shows fibroblastic proliferation in a matrix of thickened collagen fibers, with loss of elastic fibers and no mucin deposition.

Key facts

Prevalence
<1 / 1 000 000
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.

ICD-10 codes

M06.4filed under a broader ICD-10 category

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

MONDO 0018783UMLS C1302753

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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