Introduction to Pathology.pptx

Introduction to General Pathology

1. Lecture No.1 Introduction to Pathology

2. Learning Outcomes By the end of the lecture you should be able to: Define Pathology in two ways Define General Pathology Discuss about the Morphological Changes Explain lesion and types of the Lesion Define Gross examination and Histopathology Four aspects of a disease process

3. Introduction to Pathology Pathology: Pathology is the study of Disease . Pathos – suffering , disease Logos – study Disease? *loss of ease *a departure from a normal state The better we understand the disease, the better we can diagnose & treat it Objective?

4. W hat‘s normal (When Body At E ase) Health is a state of an individual living in complete harmony with his environment.

5. Pathology is the study of morphological, functional, molecular and biochemical CHANGES in cells, tissues, or organs in response to an injury Now! Let’s define again Cell damage is cell injury

6. Courses

7. Pathology covers Four aspects of a disease process 1 Etiology : Etiology of a disease means the cause of the disease, when the cause is unknown it is called idiopathic etiology. 2 Pathogenesis: Mechanism of development of a disease.

8. Agents (Aetiology) that cause things to go wrong/ injury

9. 3 Morphological Changes (Lesion) Morphology: study of forms and structures

10. Types of Lesion Let’s define again the lesion

11. Gross Lesion) Multifocal Granulomas

12. Microscopic Lesion Granuloma

13. Pathognomonic Lesion: A lesion or sign that is specifically distinctive or characteristic of a disease or pathological condition. 4 Functional alterations and changes The morphological changes will lead to functional alterations to produce the clinical signs & symptoms of the disease. Sign : Objective, seen by observer or clinician. Symptom : Generally subjective, experienced & described by patient.

14. Two main divisions of Pathology

15. In summary, pathology studies: etiology , pathogenesis , morphological changes , clinical features , diagnosis and prognosis of all the diseases . Thanks Dr Rukhshanda Ramzaan RcVet Lahore