Richa Singh Chauhan

• MBBS MD, DNB, FRCR DM (Neuro Imaging & Interventional Radiology) MNAMS
• ASSISTANT PROFESSOR at All India Institute of Medical Sciences RAIPUR (CHHATTISGARH)

We report a case of an unruptured, symptomatic, large right cavernous internal carotid artery aneurysm successfully treated with a new balloon-expandable flow diverter – Xcalibur Aneurysm Occlusion Device (AOD). Follow up imaging performed at six months demonstrated complete exclusion of the aneurysm and regression in dimensions, resulting in resol...

Background and purpose: Presurgical prediction of H3K27M mutation in diffuse midline gliomas (DMGs) on MRI is desirable. The purpose of this study is to elaborate conventional MRI (cMRI) features of H3K27M-mutant DMGs and identify features that could discriminate them from wild-type (WT) DMGs. Methods: CMRI features of 123 patients with DMG were...

Presurgical devascularization of neoplasms of the head and neck can be achieved by endovascular as well as direct percutaneous embolization techniques. We report a case of percutaneous glue embolization of an orbital meningioma, complicated by delayed acute stroke due to the distal migration of polymerized glue in the left middle cerebral artery. T...

Purpose H3K27M-mutant diffuse midline gliomas (M-DMGs) exhibit a clinically aggressive course. We studied diffusion-weighted imaging (DWI) and perfusion (PWI) MRI features of DMG with the hypothesis that DWI-PWI metrics can serve as biomarkers for the prediction of the H3K27M mutation status in DMGs. Methods A retrospective review of the instituti...

Rhabdomyosarcoma (RMS) is a malignant mesenchymal tumor arising from the embryonal muscle cells (rhabdomyoblasts), and is the most common soft tissue sarcoma in children and young adults accounting for 4–6% of all malignancies in this age group. Though rare overall, embryonal rhabdomyosarcoma is the most common malignancy arising in the pediatric f...

Moyamoya disease demonstrates angiographically enlarged anterior falcine artery (AFA) participating in anastomotic dural–pial collateralization along parasagittal locations. It is conceivable that in vasospasm following subarachnoid hemorrhage (SAH-V), this AFA may responsively enlarge to perfuse ischemic parenchyma. We investigate the angiographic...

Congenital absence of ribs is a quite unusual entity that can present as an isolated finding or as a part of syndrome. Rib defects may be associated with maldevelopment of vertebral column or thoracic musculature. The congenital rib agenesis has been reported postnatally in a few case reports. We present a case of a primigravida referred for an ano...

Background Non-invasive prediction of H3K27M-altered Diffuse midline gliomas is important because of the involvement of deep locations and proximity to eloquent structures. We aim to predict H3K27M alteration in midline gliomas using radiomics features of T2W images. Methods Radiomics features extracted from 124 subjects (69 H3K27M-altered/55 H3K2...

Gestational trophoblastic disease (GTD) comprises hydatidiform mole, invasive mole, epithelioid trophoblastic tumor, placental site trophoblastic tumor, and choriocarcinoma. Ectopic molar gestation (EMG) is exceedingly rare with similar malignant potential like that of an intrauterine molar pregnancy. We report an uncommon case of EMG diagnosed by...

BACKGROUND This study presents a detailed pictorial review of Atypical teratoid/rhabdoid tumor (AT/RT), a high-grade central nervous system (CNS) malignancy, emphasizing the relationship between neuroimaging characteristics and clinical, molecular, and histopathological aspects. AT/RT is mainly characterized by the biallelic inactivation of SMARCB1...

Purpose Pre-surgical prediction of H3K27M mutation in diffuse midline gliomas (DMG) on MRI is desirable. The purpose of the study is to elaborate conventional MRI (cMRI) of H3K27M-mutant DMGs and identify features that could discriminate them from WT (wild type)-DMGs. Methods cMRI features of 123 patients with DMG were evaluated conforming to the i...

Conventional MRI of DMGs

The hemodynamics of anterior falcine artery in vasospasm.

VV-AVF embolisation with squid/ menox

NAA peak in MRS

Texture analysis in DMGs

DMG advanced MRI

Dermoidcysts of the ovary represent the most common form of benign ovarian tumors. Their site, size and clinical presentations are extremely variablecausing confusion with various medical and surgical entities. Uncomplicated dermoid cysts are often asymptomatic andare relatively easy to diagnose on imaging. Symptomatic complicated dermoids may lead...

Objective: Neurotrauma has been labelled as a “silent epidemic” affecting both the developed and the developing nations. To date, no single brain-specific biomarker has been unanimously accepted for routine clinical use in TBI. Our study aims to determine the correlation of “cleaved-tau protein” in severe traumatic brain injury (TBI) with Glasgow C...

Encephalocele is a rare lesion, being an embryological mesodermal anomaly which results in a defect in the cranium and dura, associated with herniation of meninges, cerebrospinal fluid, or brain tissues through a defect usually covered by scalp. Surgical management of children with giant occipital encephalocele requires careful attention to pediatr...

Neurofibromatosis type 2 (NF-2) is a rare, inherited, tumor-prone disorder, characterized by multiple neoplasms of the central and peripheral nervous system associated with ocular abnormalities. It is associated with tumors of Schwann cells and meninges. Affected individuals inevitably develop schwannomas, usually affecting both vestibulocochlear n...

A case report.

A case report.

Case series

Case series

The objective of this study was to evaluate the age distribution, mode of injury, type of hematomas, and their surgical outcome in patients with bilateral traumatic head injuries. The present study included 669 cases of traumatic head injury who presented at the neurosurgery emergency out of which 94 cases had bilateral head injuries from the perio...

Case report.

A pictorial Assay

Pictorial Assay