Panacea Journal of Medical Sciences

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Pulmonary tuberculosis: An observational study to compare radiographic abnormalities with reference to smear microscopy status

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Original Article

Author Details : Shamrendra Narayan, Hemant Kr Agarwal, Arvind Kr Singh, Dipti Agarwal*, Manoj Pandey

Volume : 12, Issue : 2, Year : 2022

Article Page : 350-354

https://10.18231/j.pjms.2022.066

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Abstract

Background: Interpretation of Chest X Ray (CXR) in relation to sputum smear microscopy can be useful in early diagnosis of pulmonary TB. The study aimed to compare the CXR findings in pulmonary TB cases with positive sputum microscopy and negative sputum microscopy.
Materials and Methods: Patients with presumptive pulmonary TB were grouped into smear positive pulmonary TB and smear negative pulmonary TB groups based on CXR and sputum smear microscopy.
CXR findings in the two groups were compared using chi square and students- t test.
Results: A total of 225 patients with presumptive pulmonary TB were evaluated. Of these, 174 subjects were included in the study: 129 (74.2%) in smear positive pulmonary TB group and 45(25.8%) in smear negative pulmonary TB group. Parenchymal involvement was the most common finding in both smear positive and smear negative groups seen in 118 (91.5%) and 42 (93.3%) subjects, respectively. The area of parenchymal involvement was significantly more in smear positive group as compared to smear negative group (p<0 p=0.005)> Conclusion: CXR could detect 25.8% smear negative pulmonary TB cases. Extensive parenchymal infiltration and cavitation were more commonly associated with smear positive patients whereas nodal involvement was significantly more common in smear negative patients.
 

Keywords: Smear microscopy, Chest x­ray, Pulmonary tuberculosis, Diagnosis

How to cite : Narayan S, Agarwal H K, Singh A K, Agarwal D, Pandey M, Pulmonary tuberculosis: An observational study to compare radiographic abnormalities with reference to smear microscopy status. Panacea J Med Sci 2022;12(2):350-354

Copyright © 2022 by author(s) and Panacea J Med Sci. This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 International License (creativecommons.org)