Pseudoachondroplasia in a child with prolapse of the mitral valve

Pseudoachondroplasia is an autosomal dominant variant of osteochondroplasia that results in mild to severe short-limb dwarfism and early-onset of oste oarthrosis. It has been linked to results from mutations in the gene for ca rtilage oligomeric matrix protein. We describe a 4-year-old boy with pseudo achondroplasia who also had prolapse of the mitral valve. To the best of ou r knowledge, this association has not previously been reported.