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Case Reports
. 1992;32(6):340-2.
doi: 10.1159/000116857.

Isolated Prolonged Retrograde Amnesia

Case Reports

Isolated Prolonged Retrograde Amnesia

Y Yoneda et al. Eur Neurol. .


We describe a patient who had isolated retrograde amnesia of 1-year duration without anterograde amnesia after recovery from encephalitis. Single photon emission computed tomography using 123I-IMP revealed that left temporal lobe abnormality. We postulate that the learning ability for new information and recalling ability for old information involve different neural structures, and there is a possible relationship between isolated retrograde amnesia and left temporal dysfunction.

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