Uniprot Description A form of geleophysic dysplasia, a rare skeletal disease characterized by severe short stature, short hands and feet, and joint limitations. Radiologic features include delayed bone age, cone-shaped epiphyses, shortened long tubular bones, and ovoid vertebral bodies. Affected individuals have characteristic facial features including a 'happy' face with full cheeks, shortened nose, hypertelorism, long and flat philtrum, and thin upper lip. Other distinctive features include skin thickening, progressive cardiac valvular thickening often leading to an early death, toe walking, tracheal stenosis, respiratory insufficiency, and lysosomal-like storage vacuoles in various tissues. GPHYSD3 inheritance is autosomal dominant.