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Saturday, 31 May 2008

Strawberry appearance

Facial non pigmented actinic keratoses (AKs) display 4 main dermoscopic features:
  1. erythema, with a pink-to-red pseudonetwork surrounding the hair follicles
  2. white-to-yellow surface scale
  3. fine, linear-wavy vessels surrounding the hair follicles
  4. hair follicle openings filled with yellowish keratotic plugs and/or surrounded by a white halo
These features combined to produce a strawberry’ appearance.

Strawberry appearance in a non pigmented AK

Strawberry appearance in a slightly pigmented AK

Other cases of AKs:

I. Zalaudek, J. Giacomel, G. Argenziano, R. Hofmann-Wellenhof, T. Micantonio, A. Di Stefani, M. Oliviero, H. Rabinovitz, H.P. Soyer, K. Peris (2006) Dermoscopy of facial nonpigmented actinic keratosis. British Journal of Dermatology 2006: 155 (5) , 951–956