Research Article
Clinical Clues to Differentiate between Dermatophyte Onychomycosis (DP-OM) and Dermatophytoma-Like Traumatic Onychodystrophy (DP-TO)
Table 2
Comparison of dermoscopic nail findings of dermatophytoma and dermatophytoma-like traumatic onychodystrophy.
| Characteristic | Number (%) | | Dermatophytoma onychomycosis () | Dermatophytoma-like-traumatic onychodystrophy () | value |
| Dorsal view | | | | (i) Homogenous whitish discoloration | 1 (7.7) | 11 (47.8) | 0.014 | (ii) Heterogenous multicoloration | 5 (38.5) | 5 (21.7) | 0.282 | (iii) Sharp edge of onycholytic area | 0 (0) | 10 (43.5) | 0.005 | (iv) Longitudinal striae adjacent to dermatophytoma | 9 (69.2) | 7 (30.4) | 0.024 | (v) Spiked jagged proximal edge | 9 (69.2) | 10 (43.5) | 0.177 | (vi) Distal nicking | 1 (7.7) | 6 (26.1) | 0.382 | Hyponychium view | | | | (i) Sulfur-nugget-like subungual debris | 3 (23.1) | 0 (0) | 0.040 | (ii) “Ruin appearance” | 7 (53.8) | 11 (47.8) | 0.729 | (iii) Onychauxis | 4 (30.8) | 11 (47.8) | 0.319 |
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