Actinic comedonal plaque--a rare ectopic form of the Favre-Racouchot syndrome.

A 59-year-old woman with a single cuff-like plaque, consisting of multiple skin-coloured to bluish cysts and comedones on her right forearm is reported. The solitary lesion resembled, morphologically and histologically, the Favre-Racouchot syndrome. The above condition is another case of the previously described actinic comedonal plaque, which seems to be a rare entity within the spectrum of disease caused by actinic damage to the skin.