Recent observation of three cases of hyperpigmentary lesions of verruca plana called attention to the differential diagnosis between lentigines, ephelides and these unusual pigmentary lesions of verruca plana. In one case there were none of the usual lesions of verruca plana, while in the other two, one or more typical lesions were seen in addition to the hyperpigmented lesions.
Hyperpigmentary lesions vary in size from those that are scarcely perceptible to those that are 1 cm. in diameter. They are yellowish brown, have a smooth, nonverrucous surface, are nonelevated or are almost imperceptibly elevated and, according to Freudenthal and Spitzer,1 are differentiated from ephelides and lentigines by the fact that they can be curetted, while the latter two lesions cannot.
REPORT OF CASES
Case 1.—A married woman aged 24 years had for several months noticed on the right side of the face brown spots which had been growing more