Pathology Definitions

What is a disease?

An unhealthy state caused by the effects of injury

Pathophysiology is what?

Mechanisms by which the abnormal function is expressed.

syndrome

collection of signs and sypmptoms

incidence

frequency of a disease over a period of time in a given population

What is the formula for incidence?

number of new cases per year/ number of person in the population

Mortality

outcome of a disease is death

Morbidity

short term or long term disability due to disease. Think illness.

lesion

structural change in tissue or organ (change in morphology)

What is a Chronic Disease?

Begins slowly with signs and symptoms that are difficult to interpret.

What is Pathology?

Study of changes in body structure and function as a result of disease.

What is Etiology?

The causes of disease.

What is prevalence?

The number of cases present in a given population at any one time.

What does Idiopathic mean?

Unknown Cause

Iatrogenic means?

a disease caused by medical diagnosis or treatment

What is an acute disease?

a disease that arises rapidly, that lasts for a short time.

symptom?

a manifestation of disease reported by the patient.

Sign?

a manifestation of disease see by an observer

Pathogenesis means?

the sequence of events leading from causes to manifestations of the disease