| METAPLASIA | DYSPLASIA | |
| 1. | Definition- Change of one type of epithelial or mesenchymal cell to another type of epithelial or mesenchymal cell | Definition- Disordered cellular development, accompanied by hyperplasia or Metaplasia |
| 2. | Types- Epithelial,(squamous, columnar) Mesenchymal(osseous, cartilaginous) | Types- Epithelial only |
| 3. | Tissues affected- Bronchial mucosa, endocervix, mesenchymal- arteries | Tissues affected- Uterine, cervix, bronchial mucosa |
| 4. | Cellular changes- Mature cellular development | Cellular changes- Disordered cellular development (pleomorphism)Nuclear hyperchromasia, mitosis, loss of polarity |
| 5. | Natural history- Reversible on withdrawal of stimulus | Natural history- May regress on the removal of stimulus or may progress to higher grades of dysplasia or carcinoma in situ |
Difference between Hypertrophy and Hyperplasia
Difference between Dystrophic-Calcification and Metastatic Calcification
Difference between Dry Gangrene and Wet Gangrene
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