Fine needle aspiration cytology (FNAC) is a procedure wherein cells are aspirated from a lesion/tumor using a needle and syringe by applying negative pressure 1. The aspirated material contains ...cells, either isolated or in clusters. Cell morphology, nuclear characteristics and cytological features of malignancy can be studied in these smears. The B in FNAB stands for biopsy; here, a core of tissue is examined for architectural characteristics or patterns. Pathological diagnosis of malignancy is made by using a combination of cytological and architectural disturbances. Despite advances in imaging modalities, histopathology and cytology still remain the gold standard for diagnostic confirmation of a disease.
