“…Nineteen studies reported dermoscopic features of 1,693 cases of onychomycosis. Commonly identified dermoscopic features of onychomycosis were spikes or spiked pattern (481, 28.4%) ( 10 – 18 ), jagged or spiked edges or jagged edge with spikes (188, 11.1%) ( 19 – 25 ), jagged proximal edge (175, 10.3%) ( 10 , 12 , 16 , 18 ), subungual hyperkeratosis (131, 7.7%) ( 15 , 19 , 20 , 25 , 26 ), ruins appearance, aspect or pattern (573, 33.8%) ( 15 , 19 , 22 , 24 , 27 , 28 ), and longitudinal striae (929, 54.9%) ( 10 – 18 , 20 – 23 , 27 ) ( Table 2 ). Other dermoscopic findings included distal irregular termination (331, 19.6%) ( 10 – 12 , 14 – 16 , 18 , 20 , 22 ) and aurora borealis pattern (293, 17.3%) ( 11 , 12 , 15 , 17 , 20 , 23 ).…”