Abstract
We report a case with a sequential appearance and disappearance of homonymous hemianopsia, palinopsia and metamorphopsia in the defective visual field within two days. She had a stroke nine months ago and recovered completely. During that episode, dizziness and unsteadiness happened suddenly and was followed by above-mentioned visual symptoms. Brain image and blood perfusion studies showed an old right occipital lesion with hemodynamic changes. Electroencephalograms performed immediately just after the disappearance of all the above-mentioned symptoms subsided and four months later showed similar findings, some isolated independent sharp waves over bilateral temporal areas, with right posterior extension. These were independent of her visual symptoms. The pathophysiologies of our case could be a sequential hemodynamic change in the right occipital area, from hypoperfusion to transient hyperperfusion and finally to normal perfusion. Potential mechanisms are discussed with literature review.
| Original language | English |
|---|---|
| Pages (from-to) | 77-83 |
| Number of pages | 7 |
| Journal | Acta Neurologica Taiwanica |
| Volume | 13 |
| Issue number | 2 |
| Publication status | Published - 2004 Jun 1 |
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All Science Journal Classification (ASJC) codes
- Clinical Neurology
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Sequential appearance and disappearance of hemianopia, palinopsia and metamorphopsia : A case report and literature review. / Sun, Yuan-Ting; Lin, Chou-Ching.
In: Acta Neurologica Taiwanica, Vol. 13, No. 2, 01.06.2004, p. 77-83.Research output: Contribution to journal › Review article
TY - JOUR
T1 - Sequential appearance and disappearance of hemianopia, palinopsia and metamorphopsia
T2 - A case report and literature review
AU - Sun, Yuan-Ting
AU - Lin, Chou-Ching
PY - 2004/6/1
Y1 - 2004/6/1
N2 - We report a case with a sequential appearance and disappearance of homonymous hemianopsia, palinopsia and metamorphopsia in the defective visual field within two days. She had a stroke nine months ago and recovered completely. During that episode, dizziness and unsteadiness happened suddenly and was followed by above-mentioned visual symptoms. Brain image and blood perfusion studies showed an old right occipital lesion with hemodynamic changes. Electroencephalograms performed immediately just after the disappearance of all the above-mentioned symptoms subsided and four months later showed similar findings, some isolated independent sharp waves over bilateral temporal areas, with right posterior extension. These were independent of her visual symptoms. The pathophysiologies of our case could be a sequential hemodynamic change in the right occipital area, from hypoperfusion to transient hyperperfusion and finally to normal perfusion. Potential mechanisms are discussed with literature review.
AB - We report a case with a sequential appearance and disappearance of homonymous hemianopsia, palinopsia and metamorphopsia in the defective visual field within two days. She had a stroke nine months ago and recovered completely. During that episode, dizziness and unsteadiness happened suddenly and was followed by above-mentioned visual symptoms. Brain image and blood perfusion studies showed an old right occipital lesion with hemodynamic changes. Electroencephalograms performed immediately just after the disappearance of all the above-mentioned symptoms subsided and four months later showed similar findings, some isolated independent sharp waves over bilateral temporal areas, with right posterior extension. These were independent of her visual symptoms. The pathophysiologies of our case could be a sequential hemodynamic change in the right occipital area, from hypoperfusion to transient hyperperfusion and finally to normal perfusion. Potential mechanisms are discussed with literature review.
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UR - http://www.scopus.com/inward/citedby.url?scp=3042747053&partnerID=8YFLogxK
M3 - Review article
C2 - 15478679
AN - SCOPUS:3042747053
VL - 13
SP - 77
EP - 83
JO - Acta Neurologica Taiwanica
JF - Acta Neurologica Taiwanica
SN - 1019-6099
IS - 2
ER -