Painful supernumerary phantom arm following motor cortex stimulation for central poststroke pain - Case report

In this report, the authors describe a case in which the patient began to e xperience a supernumerary phantom arm after she received motor cortex stimu lation for central pain. The patient had a history of right thalamocapsular stroke. It is speculated that the motor cortex activation triggered a resp onse in the patient's parietal lobe, precipitating perception of the phanto m limb. To the authors' knowledge this is the first reported case of its kind.