Somatosensory Findings

  • Sergio Canavero
  • Vincenzo Bonicalzi


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. [30] 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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Copyright information

© Springer International Publishing AG 2018

Authors and Affiliations

  • Sergio Canavero
    • 1
  • Vincenzo Bonicalzi
    • 2
  1. 1.HEAVEN/GEMINI International Collaborative GroupTurinItaly
  2. 2.AOUCittà della Salute e della Scienza di Torino, Department of Neurosciences, Rita Levi MontalciniUniversità di TorinoTurinItaly

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