PMC6214816_01
Clinical Syndromes and MRI Findings Associated with Influenza A Mediated Encephalopathy. Overview of possible neurological manifestations of influenza infections (adapted from Goenka et al.) (A) and magnetic resonance imaging (MRI) findings in the present case of influenza-A mediated encephalitis (B,C). Transversal fluid-attenuated inversion recovery sequence (B) and diffusion-weighted imaging (C) MRI scans revealed an elongated pattern confluent periventricular lesion at the left upper temporal lobe (arrowheads). Additionally, aspects of normal pressure hydrocephalus with signs of transependymal liquor diapedesis adjacent to the ventricles are present; MERS, Mild Encephalitis/Encephalopathy with Reversible Splenial Lesions; PRES, Posterior Reversible Encephalopathy Syndrome; ANE, Acute Necrotizing Encephalopathy; AESD, Acute Encephalopathy with Biphasic Seizures and Late Reduced Diffusion; AIEF, Acute Infantile Encephalopathy Predominantly Affecting the Frontal Lobes; ASEM, Acute Shock with Encephalopathy and Multiple Organ Failure; AHL, Acute Hemorrhagic Leukencephalopathy; ADEM, Acute Disseminated Encephalomyelitis.
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CT, and no abnormalities of the supra-aortal vasculature in CT angiography. Cranial magnetic resonance imaging (MRI) performed one day later (see Figure 1) showed subcortical fluid-attenuated inversion recovery (FLAIR) and diffusion-weighted imaging (DWI) lesions in the left temporal region.