title: Adult onset systemic carnitine deficiency: favorable response to L-carnitine supplementation.
abstract: We report the case of a patient who at age 39 first developed an episode of muscle weakness and transient ketoacidosis with biopsy proven fatty infiltration of the liver. Over the next several years, myopathy ensued; biopsy revealed extensive deposition of lipid globules in type 1 muscle fibres. Further investigations established the diagnosis of systemic carnitine deficiency (SCD) with skeletal muscle, hepatic, and cardiac involvement. The patient has benefited from L-carnitine supplementation. Our case represents an unusually late onset of SCD and highlights the necessity, when appropriate, of a high index of suspicion of this rare but treatable disorder.
mesh_terms: D002331:Carnitine / Q000172:deficiency* / Q000627:therapeutic use; D006801:Humans; D008099:Liver / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009132:Muscles / Q000473:pathology; D009135:Muscular Diseases / Q000209:etiology / Q000473:pathology
chemical_list: D002331:Carnitine