CC BY-NC-ND 4.0 · Indian J Radiol Imaging 2019; 29(04): 426-430
DOI: 10.4103/ijri.IJRI_235_19
Case Report

Acute encephalopathy with biphasic seizures and late reduced diffusion (central sparing type)—MRI and MR spectroscopy findings

Rahul S Ranjan
Departments of Radiodiagnosis, Rama Medical College, Mandhana, Kanpur, Uttar Pradesh
,
Gaurav Arya
Departments of Paediatrics, Rama Medical College, Mandhana, Kanpur, Uttar Pradesh
,
Vikas K Yadav
Consultant Radiologist at Maxcure Hospital, Hyderabad, Telangana, India
› Author Affiliations
Financial support and sponsorship Nil.

Abstract

Acute encephalopathy with biphasic seizure and late reduced diffusion (AESD) is a clinico-radiologic syndrome of acute encephalopathy characterized by biphasic seizure and altered consciousness in acute phase followed by restricted diffusion in bilateral cerebral parenchyma on magnetic resonance imaging (MRI) in the subacute stage. Here, we present the MRI and magnetic resonance spectroscopy (MRS) findings in a case of AESD presenting in 4-year child and diagnosed based on clinico-radiological correlation.



Publication History

Received: 29 May 2019

Accepted: 30 November 2019

Article published online:
21 July 2021

© 2019. Indian Radiological Association. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).

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  • References

  • 1 Takanashi J, Oba H, Barkovich AJ, Tada H, Tanabe Y, Yamanouchi H. et al. Diffusion MRI abnormalities after prolonged febrile seizures with encephalopathy. Neurology 2006; 66: 1304-9
  • 2 Okumura A, Kidokoro H, Tsuji T, Suzuki M, Kubota T, Kato T. et al. Differences of clinical manifestations according to the patterns of brain lesions in acute encephalopathy with reduced diffusion in the bilateral hemispheres. AJNR Am J Neuroradiol 2009; 30: 825-30
  • 3 Tada H, Takanashi JI, Terada H, Tajima K. Severe form of acute influenza encephalopathy with biphasic seizures and late reduced diffusion. Neuropediatrics 2008; 39: 134-6
  • 4 Kuwata S, Senzaki H, Urushibara Y, Toriyama M, Kobayashi S, Hoshino K. et al. A case of acute encephalopathy with biphasic seizures and late reduced diffusion associated with Streptococcus pneumonia meningoencephalitis. Brain Dev 2012; 34: 529-32
  • 5 Tanuma N, Miyata R, Kumada S, Kubota M, Takanashi J, Okumura A. et al. The axonal damage marker tau protein in the cerebrospinal fluid is increased in patients with acute encephalopathy with biphasic seizures and late reduced diffusion. Brain Dev 2010; 32: 435-9
  • 6 Takanashi J, Tada H, Terada H, Barkovich AJ. Excitotoxicity in acute encephalopathy with biphasic seizures and late reduced diffusion. AJNR Am J Neuroradiol 2009; 30: 132-5
  • 7 Moritani T, Smoker WR, Sato Y, Numaguchi Y, Westesson PL. Diffusion-weighted imaging of acute excitotoxic brain injury. AJNR Am J Neuroradiol 2005; 26: 216-28