Nevoid melanoma is deceptively symmetrical, mimicking an intradermal nevus on low-power examination. The only clue is hypercellularity (blue appearance) 
and lack of maturation, which should invoke a closer scrutiny.
On high-power examination, numerous mitotic figures
are easily found in this nevoid melanoma. This finding is usually surprising given the small size and symmetry on low-power examination.
Low-power examination shows a deceptively symmetrical-appearing compound, predominantly intradermal proliferation, mimicking a nevus. There is lack of maturation with increasing dermal depth
and central hypercellularity.
Higher magnification shows that the cells are hyperchromatic staining
and do not show definite evidence of maturation with dermal descent. Note also the relatively dense surrounding lymphoid infiltrate 
. There is an atypical component focally seen.
• Tightly packed, it forms sheets of relatively banal-appearing nevoid cells
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