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  Indian J Med Microbiol
 

Figure 18: (a) Car toon illustration of longitudinal melanonychia. (b) Clinical feature of longitudinal melanonychia on the right third fingernail (patient). (c and d) Polarized dermoscopy of longitudinal melanonychia with a brown background (yellow arrows) involving most of the nail plate with longitudinal brown to black lines (blue arrow) with an irregular color, spacing, thickness and abrupt ending (×40)

Figure 18: (a) Car toon illustration of longitudinal melanonychia. (b) Clinical feature of longitudinal melanonychia on the right third fingernail (patient). (c and d) Polarized dermoscopy of longitudinal melanonychia with a brown background (yellow arrows) involving most of the nail plate with longitudinal brown to black lines (blue arrow) with an irregular color, spacing, thickness and abrupt ending (×40)