ArticleJournal of the Belgian Society of Radiology2020
MRI Findings in Acute Hyperammonemic Encephalopathy: Three Cases of Different Etiologies: Teaching Point: To recognize MRI findings in acute hyperammonemic encephalopathy.
Article in Journal of the Belgian Society of Radiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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12 citing papers in PubMed, 29 citations in OpenAlex.
- 소아 신경영상에서 보이는 비선천성 원인의 영상 소견: 임상 화보.Journal of the Korean Society of Radiology · 2026Review
- Brain magnetic resonance imaging findings in hyperammonemic hepatic encephalopathy: A case series and literature review.Biomedical reports · 2025Article
- A Case of Hepatic Encephalopathy With Diffuse Brainstem Signal Changes on Magnetic Resonance Imaging.Cureus · 2025Article
- Acquired Hepatocerebral Degeneration and Accumulation of Manganese.Annals of Indian Academy of Neurology · 2025Article
- MASLD-Induced Hyperammonemia With Atypical, Restricted Diffusion Pattern Suggesting Mixed Metabolic and Hypoxic-Anoxic Injury.HCA healthcare journal of medicine · 2025Article
- Histopathological examination of characteristic brain MRI findings in acute hyperammonemic encephalopathy: A case report and review of the literature.The neuroradiology journal · 2024Review
- Cortical Reflex Myoclonus in a Patient with Hyperammonemic EncephalopathyBalkan medical journal · 2024Article
- Volume mismatch indicates tumors in paramedial bithalamic diseases: a retrospective study.Frontiers in neurology · 2023Article
- Status epilepticus secondary to hyperammonaemia: a late presentation of an undiagnosed urea cycle defect.BMJ case reports · 2021Article
- Fatal Encephalopathy Caused by a Urea Cycle Disorder.Journal of clinical neurology (Seoul, Korea) · 2021Article
- Bilateral lesions of the basal ganglia and thalami (central grey matter)-pictorial review.Neuroradiology · 2020Review
- Article
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
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Abstract
Acute hyperammonemic encephalopathy is a rare but life-threatening condition that might complicate liver disease as well as non-hepatic conditions. It can lead to coma and death, secondary to brain edema and intracranial hypertension. We present three cases of acute hyperammonemic encephalopathy of different etiologies and the observed brain MRI findings. Symmetrical extensive cortical signal abnormalities, typically involving the insular and cingulate cortices, often showing restricted diffusion, are commonly described. These specific imaging features should be recognized by the radiologist since prompt treatment of the condition is paramount.
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