A wide spectrum of sensory abnormalities can be found among patients with CP. They range from a slightly raised threshold for one of the submodalities to complete loss of all somatic sensibility in the painful region or a very painful hyperesthesia. However, pain distribution is usually well correlated with sensory abnormalities (Tables 4.1 and 4.2). Exceptional cases of somatotopic mismatch are on record: Birznieks et al.  performed detailed tactile testing of the left hand of a 54-year-old patient suffering from sensory deficit and right-sided CPSP and revealed chaotic scrambled somatosensory maps. The pain may also occur in patients with brain lesions who have recovered from clinically detectable sensory loss, and it may persist in time; in this case, a crude sensory examination, weeks or months after the lesion, reveals no sensory deficit.
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- 5.Krause T, Brunecker P, Pittl S, Taskin B, Laubisch D, Winter B, Lentza ME, Malzahn U, Villringer K, Villringer A, Jungehulsing GJ. Thalamic sensory strokes with and without pain: differences in lesion patterns in the ventral posterior thalamus. J Neurol Neurosurg Psychiatry. 2012;83(8):776–84.CrossRefPubMedGoogle Scholar
- 11.Krause T, Asseyer S, Geisler F, Fiebach JB, Oeltjenbruns J, Kopf A, Villringer K, Villringer A, Jungehulsing GJ. Chronic sensory stroke with and without central pain is associated with bilaterally distributed sensory abnormalities as detected by quantitative sensory testing. Pain. 2016;157(1):194–202.CrossRefPubMedGoogle Scholar
- 17.Gómez-Soriano J, Goiriena E, Florensa-Vila J, Gómez-Arguelles JM, Mauderli A, Vierck CJ Jr, Albu S, Simón-Martinez C, Taylor J. Sensory function after cavernous haemangioma: a case report of thermal hypersensitivity at and below an incomplete spinal cord injury. Spinal Cord. 2012;50(9):711–5.CrossRefPubMedGoogle Scholar
- 24.Kumru H, Soler D, Vidal J, Navarro X, Tormos JM, Pascual-Leone A, Valls-Sole J. The effects of transcranial direct current stimulation with visual illusion in neuropathic pain due to spinal cord injury: an evoked potentials and quantitative thermal testing study. Eur J Pain. 2013;17(1):55–66.CrossRefPubMedGoogle Scholar
- 30.Birznieks I, Logina I, Wasner G. Somatotopic mismatch following stroke: a pathophysiological condition escaping detection. BMJ Case Rep. 2012;2012. pii: bcr2012006304.Google Scholar