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Journal of the Korean Society for Surgery of the Hand 2007;12(2):84-87.
Published online June 1, 2007.
Compressive Neuropathy of Posterior Interosseous Nerve Caused by Parosteal Lipoma of the Proximal Radius - A Case Report -
Bong-Cheol Kwon, Byung-Taek Lee, Sang-Wook Park, Nam-Kyou Rhee, Soo-Joong Choi, Sun-Young Jun
요골 근위부에 발생한 방골성 지방종에 의한 후골간신경의 압박신경병증 - 1예 보고 -
권봉철, 이병택, 박상욱, 이남규, 최수중, 전선영
Parosteal lipoma is a benign tumor of adipose tissue near the cortex of long bones with uncertain origin, and comprises only about 0.3% of all cases of lipoma. This entity is unique in that it is highly likely to cause paralysis of posterior interosseous nerve by compression once occurred in proximal radius. A 62-year old female patient, who has been suffering from palpable mass in volar aspect of a left proximal forearm, visited this hospital after having trouble with extending her wrist and fingers for last 3 weeks. From the results of MRI and EMG, she was diagnosed with posterior interosseous nerve paralysis caused by parosteal lipoma of the proximal radius. Marginal excision was carried out. 12 months after the operation, motor power was almost fully recovered without any evidence of recurrence.

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