Differential diagnosis of white matter diseases in the tropics: An overview

In hospitals in the tropics, the availability of magnetic resonance imaging (MRI) facilities in urban areas and especially in teaching institutions have resulted in white matter diseases being frequently reported in a variety of clinical settings. Unlike the west where multiple sclerosis (MS) is the...

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Main Author: Pandit Lekha
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2009-01-01
Series:Annals of Indian Academy of Neurology
Subjects:
Online Access:http://www.annalsofian.org/article.asp?issn=0972-2327;year=2009;volume=12;issue=1;spage=12;epage=21;aulast=Pandit
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author Pandit Lekha
author_facet Pandit Lekha
author_sort Pandit Lekha
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description In hospitals in the tropics, the availability of magnetic resonance imaging (MRI) facilities in urban areas and especially in teaching institutions have resulted in white matter diseases being frequently reported in a variety of clinical settings. Unlike the west where multiple sclerosis (MS) is the commonest white matter disease encountered, in the tropics, there are myriad causes for the same. Infectious and post infectious disorders probably account for the vast majority of these diseases. Human immunodeficiency virus (HIV) infection tops the list of infective conditions. Central nervous system (CNS) tuberculosis occasionally presents with patchy parenchymal lesions unaccompanied by meningeal involvement. Human T cell leukemia virus (HTLV) infection and cystic inflammatory lesions such as neurocysticercosis are important causes to be considered in the differential diagnosis. Diagnosing post infectious demyelinating disorders is equally challenging since more than a third of cases seen in the tropics do not present with history of past infection or vaccinations. Metabolic and deficiency disorders such as Wernicke′s encephalopathy, osmotic demyelinating syndrome associated with extra pontine lesions and Vitamin B12 deficiency states can occassionaly cause confusion in diagnosis. This review considers a few important disorders which manifest with white matter changes on MRI and create diagnostic difficulties in a population in the tropics.
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spelling doaj.art-678f3756878241eca95b371e4d1cc5492022-12-21T22:37:31ZengWolters Kluwer Medknow PublicationsAnnals of Indian Academy of Neurology0972-23271998-35492009-01-011211221Differential diagnosis of white matter diseases in the tropics: An overviewPandit LekhaIn hospitals in the tropics, the availability of magnetic resonance imaging (MRI) facilities in urban areas and especially in teaching institutions have resulted in white matter diseases being frequently reported in a variety of clinical settings. Unlike the west where multiple sclerosis (MS) is the commonest white matter disease encountered, in the tropics, there are myriad causes for the same. Infectious and post infectious disorders probably account for the vast majority of these diseases. Human immunodeficiency virus (HIV) infection tops the list of infective conditions. Central nervous system (CNS) tuberculosis occasionally presents with patchy parenchymal lesions unaccompanied by meningeal involvement. Human T cell leukemia virus (HTLV) infection and cystic inflammatory lesions such as neurocysticercosis are important causes to be considered in the differential diagnosis. Diagnosing post infectious demyelinating disorders is equally challenging since more than a third of cases seen in the tropics do not present with history of past infection or vaccinations. Metabolic and deficiency disorders such as Wernicke′s encephalopathy, osmotic demyelinating syndrome associated with extra pontine lesions and Vitamin B12 deficiency states can occassionaly cause confusion in diagnosis. This review considers a few important disorders which manifest with white matter changes on MRI and create diagnostic difficulties in a population in the tropics.http://www.annalsofian.org/article.asp?issn=0972-2327;year=2009;volume=12;issue=1;spage=12;epage=21;aulast=PanditDemyelinating disorderswhite matter diseases
spellingShingle Pandit Lekha
Differential diagnosis of white matter diseases in the tropics: An overview
Annals of Indian Academy of Neurology
Demyelinating disorders
white matter diseases
title Differential diagnosis of white matter diseases in the tropics: An overview
title_full Differential diagnosis of white matter diseases in the tropics: An overview
title_fullStr Differential diagnosis of white matter diseases in the tropics: An overview
title_full_unstemmed Differential diagnosis of white matter diseases in the tropics: An overview
title_short Differential diagnosis of white matter diseases in the tropics: An overview
title_sort differential diagnosis of white matter diseases in the tropics an overview
topic Demyelinating disorders
white matter diseases
url http://www.annalsofian.org/article.asp?issn=0972-2327;year=2009;volume=12;issue=1;spage=12;epage=21;aulast=Pandit
work_keys_str_mv AT panditlekha differentialdiagnosisofwhitematterdiseasesinthetropicsanoverview