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| Aspiration Pneumonia |
| Etiology • Aspiration of gastric contents |
| Pathogenesis • Gastric acid causes chemical bronchitis • Infection with aspirated organisms frequent., |
| Epidemiology • Complicates coma, anesthesia. • Patients with prolonged vomiting • Patients with depressed gag reflex |
| General Gross Description • Intensely congested bronchial mucosa, which may ulcerate • Particles of food may be grossly visible in the bronchi • Patchy bronchopneumonia may develop in the adjacent parenchyma |
| General Microscopic Description • Acute inflammation in the bronchial lumen • Acute inflammation of the bronchial wall • Marked acute congestion • Food particles may be visible microscopically • Neutrophils in the alveoli adjacent to terminal bronchioles • May develop into bronchopneumonia |
| Clinical Correlation • Leads to bronchopneumonia • Complete recovery usual with appropriate management. |
| References • Cotran RS, Kumar V, Robbins SL: Robbins Pathologic Basis of Disease. 5th edition. Philadelphia, W.B. Saunders, 1994, pp. 694-698. |
| Aspiration Pneumonia |
| Synopsis by: Melinda Sanders M.D. (T26000M79000)[127] |
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