Posterior interosseous nerve palsy caused by parosteal lipoma of proximal radius

Lipomas are common benign soft tissue tumors which tend to be indolent, and symptoms caused by nerve compression are unusual. However, a parosteal lipoma, occurring adjacent to the proximal radius may easily cause paralysis of the posterior interosseous nerve because of a specific anatomical relatio...

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Bibliographic Details
Published in:Skeletal radiology 1998-07, Vol.27 (7), p.375-379
Main Authors: NISHIDA, J, SHIMAMURA, T, EHARA, S, SHIRAISHI, H, SATO, T, ABE, M
Format: Article
Language:English
Subjects:
Biological and medical sciences
Bone Neoplasms - complications
Bone Neoplasms - diagnosis
Dermatology
Female
Humans
Lipoma - complications
Lipoma - diagnosis
Magnetic Resonance Imaging
Medical sciences
Middle Aged
Paralysis - diagnosis
Paralysis - etiology
Periosteum
Radial Nerve
Radius - diagnostic imaging
Radius - pathology
Tomography, X-Ray Computed
Tumors of the skin and soft tissue. Premalignant lesions
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Summary:Lipomas are common benign soft tissue tumors which tend to be indolent, and symptoms caused by nerve compression are unusual. However, a parosteal lipoma, occurring adjacent to the proximal radius may easily cause paralysis of the posterior interosseous nerve because of a specific anatomical relationship of these structures in that area. Two cases of parosteal lipoma of the proximal radius causing paralysis of the posterior interosseous nerve are reported. CT and MR imaging demonstrate the characteristic fatty mass around the radius and are specific in making the diagnosis. Surgical excision should be promptly performed to ensure optimal recovery from the nerve paralysis.
ISSN:0364-2348
1432-2161
DOI:10.1007/s002560050401