Home|Journals|Articles by Year|Audio Abstracts RSS - TOC

Improved diagnosis of tuberculosis in lymph node cytology by bleach method for detection of acid fast bacilli in comparison to conventional ziehl neelsen staining method

Mandakini Mansukhbhai Patel, Komal Kaushal Patel, Sonal Laxmanbhai Italiya, Kumarbhargav Rameshchandra Kaptan.


Background: Extra pulmonary tuberculosis (TB) is prevalent in developing countries and its diagnosis is often delayed, thus increasing the morbidity and mortality. Bleach method is cost effective, sensitive and safe method for demonstration of Acid fast bacilli (AFB) and is very valuable in diagnosing a case of tuberculous lymphadenitis. This simple procedure would benefit the patients to receive an early and specific treatment.

Aims & Objective: The aim of our study was early diagnosis of tuberculosis in lymph node Fine needle aspiration cytology (FNAC) by bleach method for detection of AFB in comparison to conventional Ziehl–Neelsen (ZN) method.

Material and Methods: Total 115 cases clinically suspected as tuberculous lymphadenitis in one year duration were included in study. All the aspirates by FNAC were processed for routine cytology, ZN staining and bleach method. The significance of the bleach method over the ZN method was analyzed using the χ2 (chi-square) test.

Results: Among the 115 aspirates, 59.13% (68/115) were indicative of TB on cytology, 27.83% (32/115) were positive for AFB on conventional ZN method and the smear positivity increased to 61.74% (71/115) on bleach method.

Conclusion: The implementation of the bleach method clearly improves microscopic detection of AFB over ZN method. The bleach method can be easily performed and reduce chances of laboratory acquired infections.

Key words: Lymph Node Cytology; Ziehl Neelsen (ZN) Method; Bleach Method; Tuberculosis; Acid Fast Bacilli (AFB)

Full-text options

Share this Article

Online Article Submission
• ejmanager.com

ejPort - eJManager.com
Review(er)s Central
About BiblioMed
License Information
Terms & Conditions
Privacy Policy
Contact Us

The articles in Bibliomed are open access articles licensed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License (https://creativecommons.org/licenses/by-nc-sa/4.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.