Abstract
A clinical description of this condition has been given by one of us (A. C.)<sup>1</sup>in a previous article. The disease seems to be extremely common in negroes in Jamaica and Central America, but we have seen cases in negroes in this country who have never been abroad. In a well marked case, a large number of black or dark-brownish papules, somewhat cupoliform or at times flattened, are seen on the face, principally on both malar regions, while they are usually rare or absent on the lower parts of the face and chin; a few may be present on the forehead. They are not pruriginous or painful. The maximum diameter of each papule varies between 1 mm. and 4 or 5 mm. In early cases, the surface of the papule is smooth, but later it may become slightly rough and verrucoid. At times, two or three papules appear during
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