Short Latency Somatosensory Evoked Potentials in a Patient with a Cervical Neurinoma —Case Report—

Tetsuo YOKOYAMA; Hiroshi RYU; Kenichi UEMURA; Tsunehiko MIYAMOTO; Toshiaki YAMAMOTO; Yasushi SUGIURA; Toshiaki NINCHOJI; Shoji NAKAJIMA; Tsuneo SAKAI

doi:10.2176/nmc.26.35

Short Latency Somatosensory Evoked Potentials in a Patient with a Cervical Neurinoma

—Case Report—

Tetsuo YOKOYAMA, Hiroshi RYU, Kenichi UEMURA, Tsunehiko MIYAMOTO, Toshiaki YAMAMOTO, Yasushi SUGIURA, Toshiaki NINCHOJI, Shoji NAKAJIMA, Tsuneo SAKAI

著者情報

キーワード: spinal root neurinoma, evoked potentials, sensory disturbance, SL-SEPs

ジャーナルフリー

1986 年 26 巻 1 号 p. 35-39

DOI https://doi.org/10.2176/nmc.26.35

詳細

抄録

A 34-year-old male with a right C4 root neurinoma was operated on and the tumor was totally removed. Short latency somatosensory evoked potentials (SL-SEPs) recorded before operation revealed only P₁ (P₉) and N₁ potentials. SL-SEPs were sequentially recorded and compared with changing symptoms and signs in an attempt to identify the primary generator of P₂ (P₁₁) potential. The recovery of SL-SEPs largely corresponded to recovery of vibration and position sensations; P₂ and following potentials appeared with improvement of these deep sensations. These findings suggest that P₂ potential may originate in the dorsal column or in a site rostral to the tumor.

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