RED IN WHITE SEA SIGN. Described by Dr. Chandrashekar refers to a dermoscopy image of a psoriatic plaque over a pre-existing vitiligo macule.
Dermoscopy of one of the plaques showed uniformly sized dilated capillaries and red globules some of them tortuous against a back ground of depigmentation giving a ‘red in white sea’ appearance.
Histologically, the red globules represent the view from the top of the tortuous, plentiful, coiled, ectatic, and elongated capillaries within the thin, elongated, psoriatic dermal papillae, which are the vascular basis of the Auspitz sign.
Chandrashekar, L. (2009), Red in white sea sign. Journal of the European Academy of Dermatology and Venereology, 23: 368. doi: 10.1111/j.1468-3083.2008.02868.x