Keratoelastoidosis Verrucosa of the Extremities (Stucco Keratoses of the Extremities)

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Abstract
A new type of presumably aqulred acrokeratosls in Australia is described, affecting primarily the lower extremities of geriatric patients. The popular keratotic elevations can be flicked off by the finger nail, without causing bleeding of the skin. Histology shows orthohyperkeratosis. Spiky elevations of the stratum malpighii interlock with the penetrating spikes of the thickened horny layer. Practically no inflammation of the underlying dermis shows the characteristics of the so-called senile elastosis. This type of acrokeratosis may be a regional manifestation of senile elastosis due to the damaging action of ultraviolet rays and of heat and possibly chemicals (tar). There is some indication that the condition could be reversible, since it has not been seen in advanced old age. The name stucco keratosis is suggested for the dermatosis in order to stress the main clinical feature.

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