The second fear is that residual nevus cells
left behind will transform to melanoma.
DISCUSSION: Common acquired melanocytic nevi are a common, largely acquired, condition resulting from benign proliferation of nevus cells
Cysts (arrow) and epithelium associated with nevus cells
and lymphocytes (hematoxylin-eosin stain, original magnification X10).
The histological criteria of typical MN were the presence of nests of melanocytes / nevus cells
that are distributed at the dermoepidermal junction (junctional nevus), confined to the dermis (intradermal nevus), or with both components Atypical histological features included poor circumscription, asymmetry, irregular confluent nests, predominance of single melanocytes, cytological atypia, frequent mitosis, and presence of necrosis (7).
Pigmented cellular nevus is benign proliferation of the nevus cells
either in the epithelium or connective tissue and is categorized as hamartoma or developmental malformation.