In the diagnosis of any lesion, it is not the appearance of any one cell alone but the disturbed relationship of each cell to the other that is so important.Recent improvements in diagnostic techniques, specimen collection, quantitative image analysis techniques and issue of time and cost effectiveness have stimulated a renewed interest in cytology. Cytopathology is a branch of pathology that studies and diagnoses diseases on the cellular level, by studying the structure of all normal and abnormal components of cells and the changes, movements of such components. Cytological evaluation can be...