[Polyneuropathies with an abnormal tendency for pressure-induced paralysis]

A 52-year old man is discussed. At age of 14 he was noticed to have pes cavus and thin shanks on both sides und drop foot on the right side. Since that time he has been suffering from episodic sensory loss in the distribution of the ulnar, median, peroneal and trigeminal nerves. An extended sensory loss around the pelvis and the posterior aspect of the thighs was a rather unique feature in this patient. As the patient refused nerve biopsy it cannot be decided whether peroneal muscular atrophy with multiple nerve compressions or if the entity of polyneuropathy with liability to pressure palsies was present.