Actinic lentigo : The distribution of melanin was not significantly different between lesional and adjacent non - lesional skins ( P > 0. 0 ) .
Actinic lentigo : The distribution of melanin was not significantly different between lesional and adjacent non - lesional skins ( P > 0. 0 ) .
日光性雀斑样痣组:黑素小体在皮损和周边外观正常皮肤中的分布存在明显差异(P<0.0)，皮损表皮基底层的黑素小体明显多于周边正常皮肤(P<0.0)，其他层黑素小体数量之间比较，差异无显著性(P>0.0)。