URTICARIA PIGMENTOSA (NODULAR TYPE) WITH A SUMMARY OF THE LITERATURE

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Abstract
Some manifestations of urticaria pigmentosa are rarely seen. In his excellent summary of the literature up to and including 1905, E. Graham Little1pointed out that only sixteen cases of urticaria pigmentosa had been reported in America out of a total of 154, while the English literature contained sixty-two cases, the German thirty-nine, and the French twenty-four. He showed that of 138 cases in which the sex was recorded, eighty-six, or 61.7 per cent., occurred in males and fifty-two in females, and that of 142 cases in which the age was given, seventy-nine, or 55 per cent., began at or before the sixth month of age and twenty-two, or 14 per cent., began after puberty (13 years). Also, of 123 cases in which the type of lesion was stated, eighty-three were of the macular, twelve of the nodular and twenty-eight of the mixed type. The disorder proved to be

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