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Multiple arm lipomatosis and posterior interosseus nerve palsy
F Dominici1, F Ginanneschi, R Spidalieri
1Unit of Clinical Neurophysiology, Department of Neurological and Behavioural Sciences, University of Siena, Italy. dominici2@unisi.it
Electromyography and Clinical Neurophysiology
|December 23, 2008
Summary
Lipomas, benign tumors, can rarely cause posterior interosseous nerve (PIN) neuropathy. Early electromyographic studies are crucial for detecting nerve damage and ensuring optimal recovery after surgery.
Area of Science:
- Orthopedics
- Neurology
- Surgical Oncology
Background:
- Lipomas are common, typically benign soft tissue tumors.
- While generally risk-free, lipomas can rarely infiltrate deep tissues.
- Deep lipomas may compress or damage the posterior interosseous nerve (PIN).
Observation:
- Two cases of multiple lipomatosis in the arms leading to PIN paralysis are presented.
- A review of similar cases reported in the literature is included.
- Patients presented with symptoms of nerve dysfunction due to tumor compression.
Findings:
- Electromyographic (EMG) studies are essential for early detection of radial nerve damage.
- EMG can identify subtle nerve impairments not apparent through physical examination alone.
- Prompt diagnosis facilitates timely surgical intervention.
Implications:
- Early detection of PIN neuropathy via EMG allows for timely surgical decompression.
- Optimal nerve function recovery is achievable with prompt diagnosis and treatment.
- This highlights the importance of considering nerve involvement in deep soft tissue lipomas.