Alar Ligament Avulsion
Joseph Junewick, MD FACR
over 2 years ago
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Patient with dysmorphic features.
Heather Borders, MD
|Diagnostic Category: Genetic
|Created: over 4 years ago
|Updated: over 4 years ago
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Stippled epiphyses and epiphyseal equivalents. Stippled tracheal cartilage. Stippling of proximal femurs. Mild diffuse symmetric extremity shortening.
There are three types of chondrodysplasia punctata; rhizomelic type, conradi hunerman and brachytelephalangic type. They have in common stippled epiphyses (punctate calcifications in epiphyses).
Findings in the rhizomelic type include coronal vertebral body clefting and anteriorly rounded vertebral bodies, stippling of extremity epiphyses and symmetric shortening of the humeri and femurs with less shortening of other long bones. Life expectancy is reduced.
In the conradi type; diffuse spine stippling and mildy symmetric or asymmetric extremity shortening with diffuse stippling of epiphyses. Stippling resolves during infancy. There is mild mid face hypoplasia and a high arched palate. Life expectancy is normal.
Brachytelephalangic type is far less common and patients will have severe midface hypoplasia and short hands and feet, with deformed hypoplastic proximal phalanx in the second digit in the hand and first metatarsal in the foot.
Chondrodysplasia punctata non rhizomelic type