[Recurrent palsies--consider hereditary pressure neuropathy!]

Three cases of hereditary neuropathy with liability to pressure palsies (HNPP), characterised by the typical deletion in chromosome 17p11 2-12, are described in the article. The clinical manifestations were pain-free brachial plexus palsies in two patients (belonging to the same family), and multiple episodes of numbness and weakness in various nerves in the third patient. The clinical, electrophysiological, histological and genetic findings are reviewed.