1. Cell Injury and Cell Death 2. Inflammation and Repair 3. Hemodynamic Disorders, Thromboembolism, and Shock 4. Diseases of the Immune System 5. Neoplasia 6. Genetic Disorders 7. Disease of Blood Vessels 8. Heart 9. Hematopoietic and Lymphoid Systems 10. Lung and Upper Respiratory Tract 11. Kidney 12. Gastrointestinal System 13. Liver, Biliary System, and Pancreas 14. Male Genital Tract, Prostate, and Bladder 15. Female Genital Tract and Breast 16. Endocrine System 17. Disorders of the Nervous system 18. Musculoskeletal System and Skin 19. Environmental Disease