File:Acute phase of hemiconvulsion-hemiplegia epilepsy syndrome (Radiopaedia 29309-29745 Axial TOF angiography 55).jpg

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Acute_phase_of_hemiconvulsion-hemiplegia_epilepsy_syndrome_(Radiopaedia_29309-29745_Axial_TOF_angiography_55).jpg ‎(512 × 512 pixels, file size: 15 KB, MIME type: image/jpeg)

Summary:

Description
  • Radiopaedia case ID: 29309
  • Image ID: 7079870
  • Image stack position: 55/192
  • Plane projection: Axial
  • Aux modality: TOF angiography
  • Study description: Non-contrast MR head with TOF MRA, performed 2 days after CT, 3 days efter seizures.
  • Study findings: Sulcal effacement of the left hemisphere with slight grey-white dedifferentiation on T1WI, sparing the deep nuclei. Associated diffuse panhemispheric hyperintense left white matter changes on DWI with signal loss on ADC and slightly increased signal on T2WI/FLAIR, indicating diffusion restriction consistent with cytotoxic edema. No significant mass effect. The affected areas are independent of vascular territories and there is striking sparing of the deep nuclei including the basal ganglia. No cerebellar involvement.No gross or petechial intracranial hemorrhages. No vessel or flow abnormalities on TOF angiography, nor evidence of dissection. No focal abnormalities or atrophy, including contralateral cerebellar atrophy. Conclusion Patient history, clinical picture and imaging findings suggest hemiconvulsion-hemiplegia-epilepsy syndrome in the acute phase.
  • Modality: MRI
  • System: Central Nervous System
  • Findings: Non-contrast CT performed acutely reveals no abnormalities. There is preservation of grey white matter interface. There is no dense MCA (MCA clot or dot sign), there is no evidence of swelling or hemorrhage. Conjugate eye deviation to the left is noted.
Date Published: 16th May 2014
Source https://radiopaedia.org/cases/acute-phase-of-hemiconvulsion-hemiplegia-epilepsy-syndrome
Author René Pfleger
Permission
(Permission-reusing-text)		 http://creativecommons.org/licenses/by-nc-sa/3.0/

Licensing:

Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA 3.0)

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