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  Indian J Med Microbiol
 

Figure 10 (A) Dermoscopy of acanthosis nigricans of neck shows linear sulcus cutis and crista cutis (blue arrow) and hyperpigmented brown dots (blue circle) (Heine Delta 20, polarized, ×10); (B) Dermoscopy of acanthosis nigricans of face shows linear sulcus cutis and crista cutis and hyperpigmented brown dots (yellow circle). These features are less prominent as compared to AN of neck (Dinolite edge, polarized).

Figure 10 (A) Dermoscopy of acanthosis nigricans of neck shows linear sulcus cutis and crista cutis (blue arrow) and hyperpigmented brown dots (blue circle) (Heine Delta 20, polarized, ×10); (B) Dermoscopy of acanthosis nigricans of face shows linear sulcus cutis and crista cutis and hyperpigmented brown dots (yellow circle). These features are less prominent as compared to AN of neck (Dinolite edge, polarized).