Histology is also referred to as anatomy or microanatomy, is that the branch of biology that studies the anatomy of biological tissues. Histology is that the microscopic counterpart to macroscopic anatomy, which looks at larger structures visible without a microscope. Although one may divide anatomy into organology, the study of organs, histology, the study of tissues, and cytology, the study of cells, modern usage places these topics under the field of histology. In medicine, histopathology is that the branch of histology that has the microscopic identification and study of diseased tissue. In the field of paleontology, the term paleohistology refers to the histology of fossil organisms.
Histopathology is the branch of histology that has the microscopic identification and study of diseased tissue. It is a crucial part of anatomical pathology and surgical pathology, as accurate diagnosis of cancer and other diseases often requires histopathological examination of tissue samples.