Kniest's dysplasia is a rare skeletal dysplasia characterized by disproportionate short stature and skeletal abnormalities.
It is typically caused by mutations in the type II collagen gene (COL2A1).
Observation:
This study describes three female patients with Kniest's dysplasia.
Two patients from the same family exhibited only skeletal defects.
A third patient presented with skeletal defects along with additional symptoms affecting tendons, sclerae, eye lenses, retinal vessels, and hearing.
Findings:
The observed clinical heterogeneity suggests genetic variations within Kniest's dysplasia.
These variations lead to differing manifestations, ranging from skeletal-only defects to systemic involvement due to collagen deficiency.
Implications:
Understanding these genetic variations is crucial for accurate diagnosis and genetic counseling.
Further research into the molecular mechanisms underlying these variations can inform potential therapeutic strategies for Kniest's dysplasia and related collagenopathies.