Cytology isthe study (Greek-Logos) of cells (Greek-Kytos). Cytopathology, on the other hand, is the study of disease changes within individual cells or, cell typesl. In day to day practice, the term cytopathology is synonymous with cytology. Cytopathology is studied under a few headings. One, known as “exfoliative cytology” embraces the procedure of microscopic examination of the cells exfoliated from the body for the purpose of detecting disease.