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Syndrome reference sheet
Generated 13 Oct 2026
Neurology · Neurology / Neuromuscular

Posterior interosseous nerve syndrome

Also known as: PIN syndrome

Motor branch of radial nerve neuropathy.

Medical specialty
Neurology
Subspecialty
Neurology / Neuromuscular
Sex & age distribution
Male: affected; Female: affected equally; Children: rare
Gene(s) involved
None recorded

Etiology & mechanism

Compression at arcade of Frohse.

Gene(s) involved (0)

No gene recorded.

Symptoms & signs (2)

finger drop without wrist dropforearm pain
SyndromeScope — educational reference. Content is model-generated and not clinically verified; always confirm against OMIM, Orphanet and GeneReviews before clinical use.