Pathology 3500 Lecture Notes - Lecture 1: Cerebrovascular Disease, Cirrhosis, Head Injury
21 Mar 2018
School
Department
Course
Professor
Document Summary
Immunohistochemistry: gross examination (macroscopic, electron microscopy, molecular pathology. In living organisms when cells are injured they go through patterns of responses to that injury: disease results if the cells fail to adapt to the injury or the adaptation becomes harmful. In an attempt to protect itself it causes harm. Identifying disease: we identify disease by the appearance of physical signs, these however are late findings after action has occurred at cellular level. Symptoms: subjective evidence of disease, what the patient tells you ex. Signs: objective evidence of disease, blood in the stool. What causes disease: broadly, injury occurs as a result of environmental or genetic results, genetic: can be congenital or acquired, single mutations to large alterations in chromosomes, environments, physical or chemical agents ex. Infections: latrgentic (adverse event as a result of treatment, allergens (environmental agents triggering diease) Incidence= number of new cases in a population. Prevalence= total number of causes (new and existing) in the population.
