It is better to get an excision biopsy
done since the FNAC is not very conclusive. Many a times when the lymphnode is big there is necrosis
in the center of the node which can mislead the pathologist. You can get the node removed and if it turns out to be Tubercular you can immediately start on AKT
and you will recover soon. If you do not want it to be removed, AKT can be started empirically.
Any more doubts you are welcome.
Dr. Naveen Kumar