Introduction to Human Pathology
- Introduction
- Pathology is the study of disease, including its causes, mechanisms, and effects on the body.
- It bridges basic science and clinical medicine by explaining how illness develops.
- Branches of Pathology
- Anatomical pathology: examines tissues and organs, including biopsies and autopsies.
- Clinical pathology: analyzes blood, fluids, and other laboratory specimens.
- Molecular pathology: studies disease at the genetic and molecular level.
- Core Concepts
- Etiology: the cause of a disease, such as infection, genetics, or toxins.
- Pathogenesis: the sequence of events from cause to manifestation.
- Morphology: the structural changes disease produces in cells and tissues.
- Disease Classification
- Diseases may be congenital or acquired, acute or chronic.
- Categories include inflammatory, infectious, neoplastic, and degenerative.
- Signs are observable, while symptoms are reported by the patient.
- Importance in Practice
- Pathology guides diagnosis, prognosis, and treatment choices.
- Laboratory findings confirm or rule out clinical suspicions.
- It underpins evidence-based and personalized medicine.