BACKGROUND
Hyaline body myopathy (HBM) is a rare chronic nonprogressive congenital myopathy, with variable patterns of inheritance.
METHODS
We describe a patient with congenital HBM with progression of weakness and increasing muscle pain in adulthood. Three muscle biopsies, done at various times in her life, are reported.
RESULTS
Symptoms started during childhood; however, as an adult, foll...