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KMID : 0621520070120020084
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Journal of the Korean Society for Surgery of the Hand
2007 Volume.12 No. 2 p.84 ~ p.87
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Compressive Neuropathy of Posterior Interosseous Nerve Caused by Parosteal Lipoma of the Proximal Radius - A Case Report -
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Kwon Bong-Cheol
Lee Byung-Taek
Park Sang-Wook
Rhee Nam-Kyou
Choi Soo-Joong
Jun Sun-Young
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Abstract
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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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KEYWORD
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Proximal radius, Parosteal lipoma, Posterior interosseous nerve
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