RESUMEN
Fine Needle Aspiration Cytology [FNAC] is a diagnostic modality, which over the years has proved itself to be quick and virtually without complications. Since its popularization in late 1920's by Martin and Ellis, it has undergone a tortuous course, comprising popularity, ignorance and again a period of well-acceptance. This time, however, its use has also initiated exploration into new vistas in the form of study of biological behaviour of tumour cells and detection of different receptors and tumour markers etc. Initially employed cautiously and limitedly, FNAC, now-a-days is being applied to almost all the superficial and deep structures of the body, both in children as well as in the adults. Also synergistic [additional] advantage is being gained with C.T. scan, MRI, Ultrasound, endoscopy and various immunological techniques to broaden the utility of this modality in different diagnostic and prognostic horizons