Diagnosis of Metatropic Dysplasia
A prenatal sonogram may show signs of the disorder including a narrow chest and a dumbbell appearance in the long bones. But most often, a doctor makes the diagnosis of metatropic dysplasia with a complete medical history, physical examination, and diagnostic tests.  

Diagnostic procedures may include:

X-rays of the cervical spine to monitor neck stability and of the thoracic and lumbar spine to evaluate for kyphosis and scoliosis

MRI of the spine cervical thoracic and lumbar spine may be taken to monitor cervical instability and spinal stenosis.