Original Research |
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Bacille Calmette-Guérin vaccine induced lymphadenitis in infants and children masquerading with tubercular lymphadenitis at tertiary care hospital in North IndiaNidhi Johri, Surabhi Pandey, Priyanka Aswal, Subhra Kumari, Priya Singh Lochab, Prerna Walecha. Abstract | | | | Background: Bacille calmette–guerin (BCG) vaccine containing live-attenuated Mycobacterium bovis was first used in humans to prevent tuberculosis in 1921. It is a safe vaccine. However, there can be minor adverse reactions such as pain, swelling, and redness at local injection site. The lesser known severe adverse reactions such as lymphadenitis, BCG osteitis, and disseminated BCG infection can be present after BCG vaccination.
Aims and Objectives: The aim of the study was to report the cases of BCG lymphadenitis diagnosed by fine needle aspiration cytology (FNAC) after BCG vaccination in infants and children.
Materials and Methods: All the infants and children (1 month–2 years) who presented with regional lymphadenopathy for FNAC after BCG vaccination were included in the study.
Results: Total 21 patients with BCG lymphadenitis were recruited. In all the cases, the lymphadenitis involved ipsilateral left axillary lymph nodes. In three patient sites of involvement included the left supraclavicular lymph nodes and in other three patients left cervical lymph nodes along with left axillary lymph node. Sixteen patients had suppurative granulomatous lymphadenitis (SGLA) on FNAC and positive for Ziehl–Neelsen (ZN) staining for acid fast bacilli (AFB), while rest nine had non-suppurative granulomatous lymphadenitis (NSGLA) with negative for ZN staining for AFB.
Conclusion: Early diagnosis of BCG lymphadenitis can help in proper management. Furthermore, it can prevent unnecessary anti tubercular treatment in children.
Key words: Bacille Calmette–Guerin Vaccine; Vaccine Induced Lymphadenitis; Tubercular Lymphadenitis; FNAC
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