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[Vol.31 No.3 contents]
Japanese/English
Full Text of this Articlein Japanese PDF (368K) |
| ArticleTitle | Two cases of heading disorientation and landmark agnosia due to right posterior cerebral artery occlusion |
| Language | J |
| AuthorList | Haruki Tokida1), Kohichi Tagawa2) |
| Affiliation |
1)Department of Rehabilitation, Brain Attack Center Ota Memorial Hospital 2)Higher Brain Dysfunction Center, Nagao Hospital |
| Publication | Japanese Journal of Neuropsychology: 31 (3), 213-219, 2015 |
| Received | Aug 13, 2014 |
| Accepted | Apr 10, 2015 |
| Abstract | We present two cases of heading disorientation and landmark agnosia. Patient 1 was a 63-year-old, right-handed man hospitalized after being found unable to move in the ditch. MRI revealed extensive embolic infarction in the posterior cerebral artery territory extending across the entire occipital and medial temporal lobes, including the right hippocampus and parahippocampal gyrus, fusiform gyrus and lingual gyrus also involving the retrosplenial region and precuneal region of the medial parietal lobe. Patient 2 was a 60-year-old, right-handed man hospitalized after experiencing sudden difficulty seeing objects to his left. MRI revealed findings similar to those in Patient 1. The posterior cerebral artery supplies the entirety of the medial temporal and occipital lobes, as well as the medial parietal lobe and retrosplenial region, and right posterior cerebral artery occlusion may cause concomitant heading disorientation and landmark agnosia. |
| Keywords | topographical disorientation, heading disorientation, landmark agnosia, posterior cerebral artery occlusion |
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