Nevus achromicus and Nevus anemicus can be differentiated by:: (A) Hypopigmented lesions, (B) Immunofluroscence, (C) Diascopy, (D) Huctchinson's sign
Answer is C. Lesions in Nevus depigmentosus will not increase in size as the borders does not merge into surrounding skin on Diascopy. (Pressing with a glass slide)
Whereas borders get merged and there will be increase in size in Nevus anemicus, on Diascopy.