Urticaria pigmentosa, described in 1869 by Nettleship1 and named by Sangster2 in 1877, is one of the rare diseases of the skin. Raymond3 described three types of this disorder, of which the nodular is the rarest. Among a total of 154 cases of urticaria pigmentosa reported by Little4 in 1905, and 152 additional cases summarized by Finnerud5 in 1923, there were only twenty-four recorded occurrences of the nodular type of this disease. We have been able to find seven additional reports since 1923. In table 1 we have listed all recorded nodular cases in both adults and children. It will be seen from this table that this type appears almost exclusively during infancy and childhood, as in twenty-four of the total of thirty-one cases the condition occurred before puberty. The majority of these patients were males of English descent, thus bearing out the general impression
RAY HH, KIYASU K. URTICARIA PIGMENTOSA IN CHILDREN: REPORT OF A NODULAR CASE AND REVIEW OF THE LITERATURE. Am J Dis Child. 1929;38(5):1020–1027. doi:10.1001/archpedi.1929.01930110119015
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