Altered consciousness with transient abnormal signals in the hippocampus: A case report

Hippocampal infarction is relatively rare. Many different diseases can mimic hippocampal infarction including transient global amnesia, Alzheimer’s disease, epilepsy, encephalitis, and encephalopathies. An 89-year-old man was transported to our hospital for altered consciousness. Diffusion-weighted...

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Main Authors: Koshi Ota, Tomonobu Nishii, Kensuke Fujii, Yasuo Oishi, Naoya Onishi, Kanna Ota, Hiroki Yokoyama, Akira Takasu
Format: Article
Language:English
Published: SAGE Publishing 2021-10-01
Series:SAGE Open Medical Case Reports
Online Access:https://doi.org/10.1177/2050313X211054644
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author Koshi Ota
Tomonobu Nishii
Kensuke Fujii
Yasuo Oishi
Naoya Onishi
Kanna Ota
Hiroki Yokoyama
Akira Takasu
author_facet Koshi Ota
Tomonobu Nishii
Kensuke Fujii
Yasuo Oishi
Naoya Onishi
Kanna Ota
Hiroki Yokoyama
Akira Takasu
author_sort Koshi Ota
collection DOAJ
description Hippocampal infarction is relatively rare. Many different diseases can mimic hippocampal infarction including transient global amnesia, Alzheimer’s disease, epilepsy, encephalitis, and encephalopathies. An 89-year-old man was transported to our hospital for altered consciousness. Diffusion-weighted magnetic resonance imaging revealed slightly intense signals in the hippocampus with a mildly decreased apparent diffusion coefficient. Serial magnetic resonance imaging revealed features of hippocampal infarction. Symptoms and cognitive function gradually improved with rehabilitation, and he was transferred to a rehabilitation facility on Hospital Day 38. Hippocampal infarction is rare in patients with altered mental status, but should be considered when magnetic resonance imaging shows findings suggestive of this condition. Other differential diseases should be ruled out by serial magnetic resonance imaging and observation of the clinical course.
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spelling doaj.art-164c288fa35d442cb7fab4e97e4738a32022-12-21T19:13:09ZengSAGE PublishingSAGE Open Medical Case Reports2050-313X2021-10-01910.1177/2050313X211054644Altered consciousness with transient abnormal signals in the hippocampus: A case reportKoshi OtaTomonobu NishiiKensuke FujiiYasuo OishiNaoya OnishiKanna OtaHiroki YokoyamaAkira TakasuHippocampal infarction is relatively rare. Many different diseases can mimic hippocampal infarction including transient global amnesia, Alzheimer’s disease, epilepsy, encephalitis, and encephalopathies. An 89-year-old man was transported to our hospital for altered consciousness. Diffusion-weighted magnetic resonance imaging revealed slightly intense signals in the hippocampus with a mildly decreased apparent diffusion coefficient. Serial magnetic resonance imaging revealed features of hippocampal infarction. Symptoms and cognitive function gradually improved with rehabilitation, and he was transferred to a rehabilitation facility on Hospital Day 38. Hippocampal infarction is rare in patients with altered mental status, but should be considered when magnetic resonance imaging shows findings suggestive of this condition. Other differential diseases should be ruled out by serial magnetic resonance imaging and observation of the clinical course.https://doi.org/10.1177/2050313X211054644
spellingShingle Koshi Ota
Tomonobu Nishii
Kensuke Fujii
Yasuo Oishi
Naoya Onishi
Kanna Ota
Hiroki Yokoyama
Akira Takasu
Altered consciousness with transient abnormal signals in the hippocampus: A case report
SAGE Open Medical Case Reports
title Altered consciousness with transient abnormal signals in the hippocampus: A case report
title_full Altered consciousness with transient abnormal signals in the hippocampus: A case report
title_fullStr Altered consciousness with transient abnormal signals in the hippocampus: A case report
title_full_unstemmed Altered consciousness with transient abnormal signals in the hippocampus: A case report
title_short Altered consciousness with transient abnormal signals in the hippocampus: A case report
title_sort altered consciousness with transient abnormal signals in the hippocampus a case report
url https://doi.org/10.1177/2050313X211054644
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