We report 2 isolated cases of slowly progressive muscle weakness in which tubular aggregates in muscle biopsy were found as the major pathological feature. Tubular aggregates were present in both types of fibers. Electron microscopy revealed the accumulation of double-walled tubular structures in dense subsarcolemmal locations or in smaller amounts within the myofibrils, close to cytoplasmic organelles.
View Article and Find Full Text PDFJ Neurol Neurosurg Psychiatry
January 1998