HADHA and hyperinsulinemic hypoglycemia, familial, 4: Early manifestation may suggest a MTP (mitochondrial trifunctional protein) or LCHAD (long-chain 3-hydroxyacyl-CoA dehydrogenase) deficiency, conditions presenting with a chronic sensorimotor polyneuropathy in the initial stadium, which can later be accompanied by episodic rhabdomyolysis.