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Pronator syndrome is a median nerve entrapment neuropathy that can be difficult to diagnose due to its variable presentation and objective findings. Neurolymphomatosis is an uncommon disease in which malignant lymphocytes infiltrate central or peripheral nerve endoneurium and is often missed for prolonged periods prior to diagnosis. We present a rare case of pronator syndrome and anterior interosseous nerve palsy due to neurolymphomatosis that was occult on initial MRI in spite of the presence of a median nerve mass discovered intra-operatively during neurolysis. This case demonstrates the value of ultrasound for the examination of peripheral nerve pathology and illustrates its utility as an adjunct to MRI, in part due to the ability to screen a large region.© 2023. The Author(s), under exclusive licence to International Skeletal Society (ISS).


Sophie L Leung, Steven P Daniels, Jacques H Hacquebord, Nicholas Ward, Ronald S Adler. Pronator syndrome and anterior interosseous nerve palsy due to neurolymphomatosis: a case report. Skeletal radiology. 2023 Aug 11

PMID: 37566147

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