Brachial plexopathy in carcinoma of the prostate: An uncommon presentation of a common malignancy

Neurological presentation is rare in carcinoma prostate. Brachial plexopathy as the only manifestation of carcinoma prostate is very rare and has not been previously reported. We report an 88-year-old man who presented with new-onset paralysis of the right hand. Digital rectal examination revealed a hard, enlarged prostate and biopsy revealed adenocarcinoma of the prostate with a Gleason score of 7 (4 + 3) with perineural invasion. Computed tomography of the neck showed osteoblastic secondaries involving C6, C7, and T1 vertebrae with a paravertebral soft-tissue mass involving the right foramina of C6, C7, and T1 vertebra. The patient succumbed to the disease despite complete androgen blockade.