Incidental Saccular Aneurysm in Brain


Aneurysms are incidentally detected when brain imaging is done for indications other than subarachnoid hemorrhage. The most common indication for brain MRI/MR Angiogram is stroke. It is also done in people who have a high risk of getting brain stroke in future (on account of risk factors and family history). In our case, a 45-yearContinue reading “Incidental Saccular Aneurysm in Brain”

MRI BRAIN Abnormalities in a Case of Spinocerebellar Ataxia (SCA)


Spinocerebellar ataxia (SCA) comprises of a group of neurodegenerative disorders characterized by progressive cerebellar ataxia (either alone or in combination with other neurological system involvement). They are currently classified into various subtypes based on the underlying genetic defect. Currently, there are about 40 subtypes of SCA, referred to as SCA 1, SCA2, ….SCA 40. MRIContinue reading “MRI BRAIN Abnormalities in a Case of Spinocerebellar Ataxia (SCA)”

Excellent Response to Medical Treatment in a Case of Brain Tuberculoma


Tuberculous infection of the brain is quite common. TB can affect brain and spine in a number of ways- tuberculous meningitis, tuberculoma, brain abscess, Pott’s spine, etc. Brain tuberculoma are commonly seen in India. The patients with tuberculoma of brain present with seizures and focal neurological deficits. Here, I am presenting a 35-year old manContinue reading “Excellent Response to Medical Treatment in a Case of Brain Tuberculoma”

Calcified Enhancing Solitary Cysticercus Granuloma causing Focal Seizures


Solitary cysticercus granuloma (SCG) is a common cause of seizures in India as well as several other countries. The granuloma can be a cause of chronic epilepsy. In some cases, the granuloma resolves within a few months, however, it can last for several years in many patients. Calcification is a sign of healed SCG. EnhancementContinue reading “Calcified Enhancing Solitary Cysticercus Granuloma causing Focal Seizures”

MRI Brain in a Patient Recovering from Central Pontine Myelinolysis (CPM)


Central pontine myelinolysis (CPM) is a condition characterized by demyelinating lesions in pons, usually secondary to rapid correction of hyponatremia. In some cases, extrapontine areas such as basal ganglia, midbrain, thalamus and cerebellum may also be involved. Patients with CPM present with quadriplegia, encephalopathy, seizures, dysphagia, dysarthria, etc. Our patient was a 30-year old ladyContinue reading “MRI Brain in a Patient Recovering from Central Pontine Myelinolysis (CPM)”

Extensive Calcifications on Brain MRI in a case of Hypoparathyroidism


16-year old presented with seizures of five years duration. Seizures were of generalized tonic-clonic type. He was earlier diagnosed to have hypoparathyroidism on the basis of low serum calcium and low PTH levels in blood. MRI brain showed bilateral symmetrical calcifications involving caudate nucleus, globus pallidus, thalamus and dentate nucleus of cerebellum. Calcifications were hyperintenseContinue reading “Extensive Calcifications on Brain MRI in a case of Hypoparathyroidism”

Dysembryoplastic Neuroepithelial Tumor (DNET) causing Refractory Focal Seizures


Dysembryoplastic neuroepithelial tumor (DNET) is relatively uncommon benign tumor, responsible for causing partial seizures in children, many of those cases may be medically refractory. The most common location is temporal lobe, as in this case (about 65% of cases). About 20% cases involve frontal lobe. The remainder of cases involve caudate nucleus, cerebellum and pons.Continue reading “Dysembryoplastic Neuroepithelial Tumor (DNET) causing Refractory Focal Seizures”

Subependymal Calcification Demonstrated on SWI MRI in a Case of Tuberous Sclerosis


Tuberous sclerosis is a multi-systemic genetic disease, which predominantly manifests with seizures and cutaneous manifestations (such as adenoma sebaceum). Abnormalities on brain scan include cortical tubers, subependymal nodules (sually calcified) and subependymal giant cell astrocytoma (SEGA). MRI is usually preferred over CT scan as tubers and SEGAs are better appreciated on MRI as compared toContinue reading “Subependymal Calcification Demonstrated on SWI MRI in a Case of Tuberous Sclerosis”

MRI Lesions Mimicking Dawson’s Fingers in a Case of Small Vessel ischemia


Dawson’s fingers are periventricular lesions in patients with multiple sclerosis (MS). These are flame-shaped lesions or finger like projections, perpendicular to ventricles and represent perivenular inflammation surrounding medullary veins. Dawson’s fingers are typically seen in patients with multiple sclerosis. However, here, I present a case of small vessel ischemia, whose MRI showed lesions mimicking Dawson’sContinue reading “MRI Lesions Mimicking Dawson’s Fingers in a Case of Small Vessel ischemia”

Large CP Angle tumor Presenting with Long-standing Deafness


40-year old gentleman presented with left-sided hearing loss, which slowly deteriorated over time. At the time of presentation, he was completely deaf. Other symptoms included mild dizziness and imbalance. On examination, he had left-sided sensori-neural hearing loss. Tandem gait was impaired. He had consulted several ENT doctors over the past 4 years, and he wasContinue reading “Large CP Angle tumor Presenting with Long-standing Deafness”