Mibelli1 reported the first case of porokeratosis in 1893. Moncorps2 recorded 95 cases which had appeared in the literature up to 1931. From 1931 to 1941 we have found 24 reports dealing with 37 affected persons.
Geographic location or race does not seem to play an important role. Cases have been observed not only in Italy but in China, Japan, France, Germany, England, Poland, Russia, Argentina, Switzerland and the United States. Lain3 in 1928 stated that among the 70 cases which he gathered from the literature, including 3 of his own, 20 were from this country. We have found 7 cases reported in the United States in the past decade. The patients whose cases were reported by Ambler and Stout4 and by Johnson5 were both Negroes.
CLINICAL AND HISTOLOGIC CHARACTERISTICS
Because of the repeated clinical and histologic descriptions of porokeratosis Mibelli in the literature, we
BLOOM D, ABRAMOWITZ EW. POROKERATOSIS MIBELLI: REPORT OF THREE CASES IN ONE FAMILY; HISTOLOGIC STUDIES. Arch Derm Syphilol. 1943;47(1):1–15. doi:10.1001/archderm.1943.01500190004001
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