Single-photon emission computed tomography in a patient with ictal metamorphopsia.
Metamorphopsia is a type of visual illusion, which has been reported as a rare ictal manifestation. The patient presented with a simple partial status epilepticus characterised by continuous facial metamorphopsia, intermittently accompanied by elementary visual hallucinations or other types of visual illusions. Subtraction single-photon emission computed tomography images showed an increased perfusion in the ventrolateral aspect of the right temporo-occipital junction (middle and inferior occipital, and inferior temporal gyri). The result suggests that the anatomical substrate involved in the generation of ictal facial metamorphopsia is located in the visual association areas at the right temporo-occipital junction.
Heo
Kyoung
K
Department of Neurology, Yonsei University College of Medicine, Seoul, South Korea. kheo@yumc.yonsei.ac.kr
Cho
Yang Je
YJ
Lee
Seung-Koo
SK
Park
Sun Ah
SA
Kim
Kyu-Sik
KS
Lee
Byung In
BI
D001921:Brain / Q000098:blood supply* / Q000473:pathology / Q000503:physiopathology; D004569:Electroencephalography; D004827:Epilepsy / Q000150:complications* / Q000473:pathology / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D009778:Occipital Lobe / Q000098:blood supply / Q000473:pathology / Q000503:physiopathology; D013702:Temporal Lobe / Q000098:blood supply / Q000473:pathology / Q000503:physiopathology; D015899:Tomography, Emission-Computed, Single-Photon; D014786:Vision Disorders / Q000150:complications* / Q000473:pathology / Q000503:physiopathology*; D014793:Visual Cortex / Q000098:blood supply / Q000473:pathology / Q000503:physiopathology