Table 2 Frequency of laboratory findings on FNAB
Diagnostic modalities | Children included in study (N = 75) n (%) |
|---|---|
Cytology | |
Consistent with mycobacterial infectiona | 18 (24 %) |
Reactive lymphadenopathy (negative) | 39 (52 %) |
Malignancy/suspected malignancy (negative) | 4 (5 %) |
Unsuitable for analysis | 14 (19 %) |
Missing | - |
Ziehl Neelsen microscopy | |
Acid fast bacilli-positive | 3 (4 %) |
Negative | 71 (95 %) |
Missing slide | 1 (1 %) |
Culture | |
M. tuberculosis | 7 (9 %) |
M. bovis BCG | 2 (3 %) |
Negative | 29 (39 %) |
Non-tuberculous mycobacteria (negative) | 1 (1 %) |
Contaminated | 36 (48 %) |
Missing | - |
Xpert MTB/RIF | |
Positive | 14 (19 %) |
Negative | 56 (74 %) |
Missing result | 5 (7 %) |
EasyNAT | |
Positive | 5 (7 %) |
Negative | 70 (93 %) |
Missing | - |