MRI Spectrum of Toxic Encephalopathy-An Institutional Experience.

Background: There are numerous toxins that affect our nervous system, both central and peripheral. Innumerable differentials exist in patients of acute encephalopathy and the list can be narrowed down with appropriate imaging. Specific neuroradiological features point to a particular diagnosis in a substantial number of cases.

"Trapped labelled spins"-related signal on arterial spin labelling in the assessment of flow-diverted aneurysms: preliminary experience.

Purpose: To investigate ASL-MRI features of flow-diverted aneurysms, review their haemodynamic surrogates, and discuss their pertinent clinical implications.

Methods: Retrospective single institutional analysis was performed on the clinical and imaging data of patients who underwent digital subtraction angiography (DSA) and ASL-MRI after endovascular flow diversion for cerebral aneurysms. Pseudo-continuous ASL-MRI was performed with post-label delays of 1525-1800 ms.

"Neuroimaging in ethambutol induced optic neuropathy: MRI in time can save the vision".

Ethambutol is an integral part of Antitubercular therapy (ATT) and is often associated with optic neuropathy, However, neuroimaging of ethambutol induced optic neuropathy has been sparsely reported in the literature. We describe the case of a 45-year male patient, diagnosed as Tuberculous spondylodiscitis and was on ATT. Four months after ATT initiation, he presented with visual blurring in both the eyes with bitemporal hemianopia and central scotomas.

Tumefactive Demyelination versus Primary Central Nervous System Lymphoma on F-Fluorodeoxyglucose Positron Emission Tomography Magnetic Resonance Imaging: A Twist in the Tale.

Demyelinating lesions of the central nervous system (CNS) are classically known to be hypometabolic on F-Flurodeoxyglucose Positron Emission Tomography (F-FDG PET). However, demyelinating lesions may show increased tracer uptake on F-FDG PET and can radiologically mimic neoplasm. Delayed tracer uptake on FDG PET is one of the diagnostic hallmarks of primary CNS lymphoma (PCNSL).

XCalibur aneurysm occlusion device for the treatment of direct carotid cavernous fistula: expansion of armamentarium.

We report the first case of a post-traumatic direct carotid cavernous fistula (CCF) treated with the XCalibur aneurysm occlusion device, which is a balloon mounted stent with flow diversion effect. Two devices were deployed across the fistula in an overlapping manner, resulting in complete occlusion of the fistula. Flow diversion with this device can provide a safe and alternative treatment option in direct CCF.

Streptococcus pluranimalium: Emerging Animal Streptococcal Species as Causative Agent of Human Brain Abscess.

Background: Streptococcus pluranimalium is a new and emerging animal streptococcal species associated with primary infection in bovine and avian species. Data in the literature regarding its pathogenic significance in human beings are limited. We hereby report a case of brain abscess caused by S.

Pseudoxanthoma elasticum and nephrocalcinosis: Incidental finding or an infrequent manifestation?

Pseudoxanthoma elasticum (PXE) is an inherited disorder characterized by generalized fragmentation and progressive calcification of elastic tissue. We report two sporadic cases of PXE, both of whom presented with asymptomatic yellowish papules over the flexural sites for cosmetic reasons. Histopathological findings on hematoxylin and eosin and Verhoeff-Van Gieson (VVG) staining were classical of PXE.