A pathologist assistant is a specialized health care worker who conducts tests on specimen samples and performs surgical autopsies under licensed pathologists. As a pathology assistant, you may work in a research lab, hospital, medical examiner’s office, or you may choose to be self-employed and take on jobs at multiple facilities. You dissect tissue to acquire specimens, such as biopsies, and analyze those samples to help diagnose patients or determine problems within the cells. While you can do the majority of the procedures performed by a pathologist, you are not able to diagnose patients; the pathologist reviews your observations and suggestions and determines a diagnosis.