3 doctors weighed in:

A progressive weakness and shrinking of the muscles is a symptom of what birth defect?

3 doctors weighed in
Dr. Richard Roberts
Clinical Genetics

In brief: Pre- and post birth

If the muscles paper shrunken and much mass is missing, the e shoulders are usually hunched forward, and many joints of the extremities may be frozen.
Whatever process caused this ended long before delivery, and is static after birth muscle biopsies are not useful, showing only fibrous tissue replacement. Post deliver, there are many degenerative muscle disorders, mostly genetic, which progress.

In brief: Pre- and post birth

If the muscles paper shrunken and much mass is missing, the e shoulders are usually hunched forward, and many joints of the extremities may be frozen.
Whatever process caused this ended long before delivery, and is static after birth muscle biopsies are not useful, showing only fibrous tissue replacement. Post deliver, there are many degenerative muscle disorders, mostly genetic, which progress.
Thank
Dr. Gerald Katzman
Pediatrics - Neonatology

In brief: Amyotonia Congenita

Slow detrioration of anterior motor neurons of the spinal cord may occur. Etiology of this condition is not well understood.
The condition is progressive with eventual respiratory muscle compromise.

In brief: Amyotonia Congenita

Slow detrioration of anterior motor neurons of the spinal cord may occur. Etiology of this condition is not well understood.
The condition is progressive with eventual respiratory muscle compromise.
Thank
1 comment
Dr. Ricardo Madrid
also congenital myopathies or congenital muscular dystrophies may present that way
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