Blue nevi rarely appear in a plaque form, Because of their rarity and
unusual clinical appearance, these nevi may present a diagnostic probl
em. We described a large plaque-type blue nevus measuring about 9 x 6
cm on the right cheek of a 22-year-old man. It was characterized by se
veral dark-blue macules and papules with intervening areas of faint bl
ue discoloration. Excision of this unusual plaque-type blue nevus with
reconstruction using tissue expander was performed successfully. A 6-
year postoperative follow-up revealed satisfactory results.