Abstract
Metastatic carcinoma to the limb muscles is extremely rare. We report a case of posterior interosseous nerve palsy due to intramuscular metastasis of lung carcinoma.
The patient was a seventy-seven years old female. She consulted our clinic because of progressing motor disturbance of left fingers accompanied with painful and tender mass in the dorsal site of left forearm.
We excised a 2x2cm mass tightly adhered to the supinator and posteror interosseous nerve. The tumor was histologically diagnosed as a metastatic squamous cell carcinoma from lung.
This is the first example of posterior interosseous nerve palsy caused by metastatic carcinoma to skeletal muscle.
