blue nevus having a bulbous deep component

BLUE NEVUS HAVING A BULBOUS COMPONENT IN THE DEEP ASPECT OF THE LESION

This is a clinically stable, pigmented lesion from an adult.

Blue nevi, particularly cellular blue nevi, will occasionally have a bulbous or expansile component in the deep dermis or subcutis. This particular one is below a hair bulb. This does not qualify as a deep penetrating nevus (DPN) as blue nevi and cellular blue nevi were excluded in the selection of cases originally published as DPN.

Scan power view.

Medium power view of the middle of the reticular dermis showing the dispersed, pigmented spindle cells of blue nevus type.

Medium power view of the area below the hair bulb.

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	Scan power view.
	Medium power view of the middle of the reticular dermis showing the dispersed, pigmented spindle cells of blue nevus type.
	Medium power view of the area below the hair bulb.