COMPARISON OF VALIDITY OF FNACAND ZIEHL–NEELSEN STAINS IN DIAGNOSING CERVICAL TUBERCULOUS LYMPHADENITIS
Keywords:Acid Fast Bacilli, Fine needle aspiration cytology, Hematoxylin & eosin stain, Ziehl-Neelsen staining
Objective: To compare the validity of FNAC & ZN staining in diagnosing tuberculous lymphadenitis taking mycobacterial culture as gold standard.
Study Design: Cross sectional study.
Place and Duration of Study: Pathology department, Fauji Foundation Hospital Peshawar, from Oct 2019 to Sep 2020.
Methodology: This study includes 100 patients with enlarged cervical lymph nodes who presented as outdoor patients. After routine baseline & radiological investigations, FNAC & ZN staining was carried out, followed by mycobacterial culture.
Results: FNAC of tuberculous patients was positive in 56 (56%) patients while 24 (24%) patients revealed posi-tive mycobacterial culture. Inpatients with positive culture, 77 (77%) were FNAC positive and 23 (23%) were negative on cytology.
Conclusion: Fine needle aspiration is more sensitive & specific test than Ziehl-Neelsen staining.