Palinopsia and perilesional hyperperfusion following subcortical hemorrhage

R. Hayashi, S. Shimizu, R. Watanabe, Y. Katsumata, M. Mimura

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

We report a patient who exhibited transient palinopsia and visual hallucinations. Disturbances initially included an auditory component and increasingly were localized to the left visual field. These events occurred during recovery from a right subcortical hematoma with left homonymous hemianopia. Single-photon emission computed tomography (SPECT) demonstrated extensive perilesional hyperperfusion involving parts of the right parietal, temporal, and occipital cortex. Perilesional hyperperfusion disappeared as the visual abnormalities diminished. We believe that excitatory neuronal activation in perilesional cortex during recovery contributed importantly to the transient abnormal perceptions.

Original languageEnglish
Pages (from-to)228-231
Number of pages4
JournalActa Neurologica Scandinavica
Volume105
Issue number3
DOIs
Publication statusPublished - 2002

Keywords

  • Hyperperfusion
  • Palinopsia
  • Single-photon emission computed tomography
  • Subcortical hematoma

ASJC Scopus subject areas

  • Neurology
  • Clinical Neurology

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