Table 3.
Comparison of inflammatory epidermal lesions, benign epidermal proliferations with inflammation, intraepidermal malignant/premalignant squamous lesions and invasive malignant squamous lesions
| Features | Inflammatory epidermal lesions, n (%) | Benign epidermal proliferations with inflammation, n (%) | Malignant/premalignant intraepidermal squamous lesions, n (%) | Malignant invasive squamous lesions, n (%) |
|---|---|---|---|---|
| Pleomorphic parakeratosis | 2 (4.55) | 3 (7.69) | 25 (89.29) | 18 (43.9) |
| Mitotic figures | 30 (68.18) | 16 (41.03) | 23 (82.14) | 37 (90.24) |
| Abnormal mitotic figures | 0 | 0 | 5 (17.86) | 9 (21.95) |
| Nuclear overlap (crowding) | 2 (4.55) | 9 (23.08) | 27 (96.43) | 35 (85.37) |
| Irregular nuclei | 1 | 0 | 22 (78.57) | 39 (95.12) |
| Increased nuclear-cytoplasmic ratio | 7 (15.91) | 5 (12.82) | 28 (100) | 41 (100) |
| Nuclear hyperchromasia | 20 (45.45) | 24 (61.54) | 28 (100) | 37 (90.24) |
| Conspicuous nucleoli | 9 (20.45) | 5 (12.82) | 26 (92.86) | 41 (100) |
| Inconspicuous nucleoli | 44 (100) | 39 (100) | 27 (96.43) | 23 (56.10) |
| Coarse chromatin | 43 (97.73) | 22 (56.41) | 26 (92.86) | 41 (100) |
| Necrotic cells | 28 (63.64) | 25 (64.10) | 26 (92.86) | 40 (97.56) |