Langer mesomelic dysplasia

Langer mesomelic dysplasia
Synonyms	LMD
Pronounce	N/A
Specialty	N/A
Symptoms	Short stature, mesomelia, micromelia, hypoplasia of the ulna and fibula, hypoplastic or absent patella
Complications	Skeletal abnormalities, joint pain
Onset	Congenital
Duration	Lifelong
Types	N/A
Causes	Genetic mutation in the SHOX gene
Risks	Family history of the condition
Diagnosis	Clinical evaluation, genetic testing
Differential diagnosis	Léri-Weill dyschondrosteosis, Turner syndrome
Prevention	N/A
Treatment	Supportive care, physical therapy, orthopedic surgery
Medication	N/A
Prognosis	Variable, depends on severity of symptoms
Frequency	Rare
Deaths	N/A

Langer mesomelic dysplasia (LMD) is a rare congenital disorder characterized by severe shortening or malformation of the long bones in the arms and legs. It is a type of skeletal dysplasia, a group of disorders that affect the growth and development of the bones.

Etiology

LMD is caused by mutations in the SHOX gene, which is involved in the growth and development of the bones. These mutations result in a loss of function of the SHOX gene, leading to the characteristic features of LMD.

Clinical Features

Individuals with LMD typically have severe shortening of the long bones in the arms and legs, particularly the ulna and fibula. Other features may include short stature, limited range of motion in the elbows, and abnormalities of the hands and feet.

Diagnosis

Diagnosis of LMD is typically based on the clinical features and confirmed by genetic testing to identify mutations in the SHOX gene.

Treatment

There is currently no cure for LMD. Treatment is focused on managing the symptoms and improving quality of life. This may include physical therapy, occupational therapy, and surgical interventions to address bone abnormalities.

Prognosis

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

See Also

• Skeletal dysplasia
• Congenital disorder
• SHOX gene

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