peau d'orange

:  thickened, dimpled skin that resembles the rind of an orange and is often associated with some forms of breast cancer There was a mass, 6 to 7 cm in diameter, in the upper outer quadrant of the right breast … and the overlying skin had peau d'orange changes, without erythema.—José Baselga et al., The New England Journal of Medicine, 24 May 2012