Abstract
Objective: To study the diagnostic value of basal enhancement on computed tomography (CT scan) in differentiating tuberculous(TBM) from pyogenic (PM) meningitis. Design: Retrospective case control study. Setting: The Pediatric department in collaboration with thedepartment of Radiology and Diagnostic imaging of Bahawal Victoria hospital, Bahawalpur. Methods: The reports of CT scan (contrast) donewithin 5 days of admission of children 4 month to14 years of age with a diagnosis of either TBM (case group) or PM (control group) wereanalyzed for the basal enhancement. Results: The sensitivity, specificity, PPV and NPV of basal enhancement in the diagnosis of TBM was0.97,1,1 and 0.95 respectively. Conclusions: The presence of the basal enhancement on CT scan can effectively distinguish TBM from PM.
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