PURPOSE: To report on 5 @entity1 who had @entity56126 ( @entity11438 ) with hourglass-like constriction in the affected nerves. METHODS: We retrospectively reviewed 5 @entity1 who were treated in our department from December 2003 to December 2008. Acute, intense @entity158 around the shoulder girdle and upper arm was the first symptom and was followed by @entity425 and @entity194 . Clinical and EMG examinations showed involvement of 2 or more nerves in the affected extremity. Those severely affected nerves that had no response to conservative treatment were explored, and an hourglass-like constriction was identified. Neurolysis was performed at the sites of constrictions in 2 radial nerves and 1 median nerve. The constricted portion was resected, and direct coaptation was performed in 1 radial nerve and 1 musculocutaneous nerve. The constricted portion was resected, and nerve graft was performed in 2 radial nerves and 1 median nerve. RESULTS: All @entity1 were followed up for 24 to 84 months after surgery. Of 3 nerves treated with external neurolysis, all attained full recovery. Of 2 nerves treated with resection and neurorrhaphy, 1 attained full recovery, and the other had an incomplete recovery. Of 3 nerves treated with resection and nerve graft, 1 (4-cm nerve graft) attained full recovery, and 2 (4-cm and 13-cm nerve graft, respectively) had incomplete recovery. CONCLUSIONS: The site of @entity66 of @entity11438 was not necessarily within the brachial plexus. Our finding of hourglass-like constrictions in individual peripheral nerves suggest that multifocal involvement of terminal branch lesions may underlie the complex patterns of @entity912 often encountered clinically. TYPE OF STUDY/LEVEL OF EVIDENCE: Prognostic IV.

Typical XXXX ( @entity11438 ) with hourglass-like constrictions in the affected nerves.

@entity1 :: ('9606', 'Species') :: ['patients'] @entity56126 :: ('MESH:C538620', 'Disease') :: ['acute brachial neuritis'] @entity66 :: ('MESH:D004194', 'Disease') :: ['nerve lesion'] @entity11438 :: ('MESH:D020968', 'Disease') :: ['Parsonage-Turner syndrome', 'brachial neuritis'] @entity425 :: ('MESH:D018908', 'Disease') :: ['muscle weakness'] @entity194 :: ('MESH:D001284', 'Disease') :: ['atrophy'] @entity158 :: ('MESH:D010146', 'Disease') :: ['pain'] @entity912 :: ('MESH:D010243', 'Disease') :: ['paralysis']
@entity11438 :: (MESH:D020968,Disease) :: ['brachial neuritis']
