Examples of deafferentation pain
Deafferentation pain is a subdivision of neuropathic pain that may complicate virtually any type of injury to the somatosensory system at any point along its course. Examples include well-defined syndromes precipitated by peripheral (phantom limb) or central (thalamic pain) lesions. In all of these conditions, pain usually occurs in a region of clinical sensory loss. With phantom-limb pain, the pain is actually felt in an area that no longer exists. Patients with thalamic pain, also known as Dejerine-Roussy syndrome, report pain in all or part of the region of clinical sensory loss.