Mandibular hypoplasia, hearing loss, progeroid syndrome
MDP (mandibular hypoplasia, deafness, progeroid) syndrome
A rare genetic premature aging disease characterized by sensorineural deafness, generalized lack of subcutaneous fatty tissue (although with increased truncal deposition) noted from childhood, scleroderma, and facial dysmorphism which includes prominent eyes, a beaked nose, small mouth, crowded teeth and mandibular hypoplasia. Other associated features include growth delay, joint contractures, telangiectasia, hypogonadism (with lack of breast development in females), cryptorchidism, skeletal muscle atrophy, and hypertriglyceridemia and diabetes mellitus/insulin resistance. Caused by heterozygous mutation in the POLD1 gene on chromosome 19q13.