<unk>  is a rare syndrome characterized by mental retardation, short stature, large skull, heart anomaly and various other abnormalities.
Hypertrichotic osteochondrodysplasia
Thanatophoric dysplasia
Congenital epulis
Myositis ossificans
Unicameral bone cyst
Achondroplasia
Intraosseous lipoma
Eccentrochondrodysplasia