combined nevus

Histopathology:

 symmetric, well circumscribed
 2 or more of the following;
— common nevus
— blue nevus or other pigmented dendritic melanocytes
— Spitz nevus (epithelioid and spindle cell nevus)
— pigmented spindle and epithelioid cells
— amelanotic spindle cells
 ordinary nevus component overlies/adjacent to other component
 deep involvement occurs
 plexiform configuration on occasion

Differential:

 cellular blue nevus
 melanoma

Return to: melanocytic tumors