Shahina Bano

Color doppler evaluation of cerebral-umbilical pulsatility ratio and its usefulness in the diagnosis of intrauterine growth retardation and prediction of adverse perinatal outcome

Objective: The aim of our study was to evaluate the usefulness of the pulsatility index (PI) of the umbilical artery (UA) and that of the fetal middle cerebral artery (MCA), as well as the ratio of the MCA PI to the UA PI (C/U ratio), in the diagnosis of small-for-gestational-age (SGA) fetuses and in the prediction of adverse perinatal outcome. Materials and Methods: The study population comprised 90 pregnancies of 30-41 weeks gestation that had been diagnosed clinically as intrauterine growth retardation (IUGR) over a period of 1 year. The UA PI and the MCA PI as well as the C/U ratio were calculated. Results: Of the 90 pregnancies in the study, 24 showed abnormal UA PI. Among these, 21 (87.5%) were SGA and 19 (79.2%) had adverse perinatal outcome. Of the four of the 90 pregnancies that showed abnormal MCA PI, all were SGA and had adverse perinatal outcome. Similarly, of the 20 out of 90 pregnancies that showed abnormal C/U ratio (<1.08), all 20 (100%) were SGA and had adverse perinatal outcome. The results were correlated with parameters of fetal outcome. Conclusion: Inferences drawn from the study were: (1) The C/U ratio is a better predictor of SGA fetuses and adverse perinatal outcome than the MCA PI or the UA PI used alone, (2) The UA PI can be used to identify IUGR per se and (3) The MCA PI alone is not a reliable indicator for predicting fetal distress.

Case Report: Intracranial peripheral primitive neuroectodermal tumor - Ewing's sarcoma of dura with transcalvarial-subgaleal extension: An unusual radiological presentation.

The occurrence of the intracranial, peripheral, primitive, neuroectodermal tumor, Ewings sarcoma (pPNET-ES) of the dura, is very rare. Immunophenotypical as well as genetic analyses play key roles in its diagnosis and differentiation from central PNET. We describe here the CT scan and MRI findings of an interesting case of intracranial pPNET-ES arising from the anterior falx cerebri with a trancalvarial–subgaleal extension.

Marchiafava-Bignami disease: Role of neuroimaging in the diagnosis and management of acute disease.

Marchiafava-Bignami disease (MBD), a rare disorder most commonly seen in patients with a history of alcohol consumption, involves progressive demyelination and subsequent necrosis of the corpus callosum. Because clinical signs are nonspecific, the role of computed tomography and magnetic resonance imaging is essential to confirm the diagnosis. Early diagnosis with imaging and prompt treatment may improve the prognosis of MBD.

Elephantiasis neuromatosa of the lower limb in a patient with neurofibromatosis type-1: A case report with imaging findings.

Elephantiasis neuromatosa is the most impressive manifestation of neurofibromatosis type-1 (NF-1). We report a case of NF-1 who presented with elephantiasis neuromatosa of his right leg. Cross-sectional imaging not only assists in the correct diagnosis but also aids in imaging the vasculature of a plexiform neurofibroma, which is essential for proper surgical planning.

Retroperitoneal lymphangiectasia—radiologic appearances, complications and management alternatives: a case report

Retroperitoneal lymphangiectasia is a very rare benign disorder of lymphatic system. The origin of this disorder is speculative. Clinical evolution and prognosis remains unclear. Ultrasound and cross sectional imaging findings are characteristic and diagnostic of the disease. Complications of RPL have been reported only in rare cases. The management alternatives range from pharmacological substitutes to surgical interventions in symptomatic cases.

Central Nervous System Tuberculosis

Tuberculosis is a formidable disease worldwide because of its highly infectious nature and propensity for latency. The increasing prevalence of tuberculosis in both immunocompetent and immunocompromised individuals in recent years makes this disease a topic of universal concern. The disease has insidious onset and can affect virtually any organ system in the body, including the central nervous system (CNS). The CNS tuberculosis can mimic a number of other disease entities, and therefore it is important to be familiar with the various radiologic features of CNS tuberculosis to ensure early, accurate diagnosis. In this chapter we discuss various possible presentation of central nervous system tuberculosis involving the brain and spine.

Congenital Malformation of the Brain

More than 2000 different congenital malformations of the brain have been described in the literature, and their incidence is reported to be about 1 percent of all live births.1 Since the congenital anomalies of the brain are commonly encountered in day to day practice, it is very important for every radiologist to be familiar with the basic imaging findings of common congenital anomalies to make a correct diagnosis necessary for optimum management of these conditions. Magnetic resonance imaging (MRI) is very useful in studying these malformations. The aim of this chapter is to provide an overview of all important and routinely encountered congenital malformations of the brain.