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Spondyloepimetaphyseal dysplasia, matrilin-3 type

ORPHA:156728· ICD-10 Q77.7

Definition

A rare primary bone dysplasia due to matrilin-3 variants and characterized by disproportionate early-onset dwarfism, bowing of the lower limbs, short, wide and stocky long bones with severe epiphyseal and metaphyseal changes, lumbar lordosis, hypoplastic iliac bones, flat ovoid vertebral bodies and normal hands.

Prevalence
<1 / 1 000 000
Inheritance
Autosomal recessive
Age of onset
Antenatal, Neonatal