Otospondylomegaepiphyseal dysplasia

Otospondylomegaepiphyseal dysplasia (OSMED) is a rare genetic disorder that affects the development of the skeleton, hearing, and vision. It is characterized by short stature, severe hearing loss, and problems with vision. The condition is caused by mutations in the COL11A2 gene.

Symptoms and Signs

The most common symptoms of OSMED include short stature, severe hearing loss, and problems with vision. Other symptoms may include joint pain, skeletal abnormalities, and facial deformities. The severity of symptoms can vary greatly among individuals with the condition.

Causes

OSMED is caused by mutations in the COL11A2 gene. This gene provides instructions for making a protein that is essential for the normal development of cartilage and the formation of collagen, a protein that provides structure and strength to tissues and organs throughout the body. Mutations in the COL11A2 gene disrupt the normal development of cartilage and collagen, leading to the symptoms of OSMED.

Diagnosis

Diagnosis of OSMED is based on the presence of characteristic symptoms and signs. Genetic testing can confirm the diagnosis by identifying a mutation in the COL11A2 gene.

Treatment

There is currently no cure for OSMED. Treatment is focused on managing symptoms and improving quality of life. This may include hearing aids for hearing loss, physical therapy for joint pain and mobility issues, and surgery to correct skeletal abnormalities.

Prognosis

The prognosis for individuals with OSMED varies depending on the severity of symptoms. With appropriate management and treatment, many individuals with the condition can lead productive lives.

See Also

• Genetic disorder
• Hearing loss
• Vision problems
• COL11A2