Lipid storage myopathy due to glutaric aciduria type II: treatment of a potentially fatal myopathy.

Several patients with lipid storage myopathies have been described, although in most cases the biochemical defect is unclear. A child is reported who presented with severe muscle weakness at age six months. She had lipid storage myopathy due to glutaric aciduria type II. It is probable that her brother died from the same disorder at the age of three months. She has responded well to treatment with a low-fat diet, riboflavin, carnitine and glycine.