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