Treatment Choice - Treatment Choice | Compare Prices | Find Hospital | Histopathology is the study of tissues (histology) and cells (cytology) and usually includes morbid anatomy (autopsies).<br/>Histopathologists do not work in a lab in isolation, but work closely with other doctors in the hospital. For cancers they are part of the team that meet and discuss every patient. Histopathologists examine biopsies and larger pieces of tissue to aid in the diagnosis and treatment of patients. Histopathology, or cellular pathology, is very important as the final diagnosis of a patient is often made by the histopathologist.