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December 1951


AMA Arch Derm Syphilol. 1951;64(6):798-799. doi:10.1001/archderm.1951.01570120133021

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Porokeratosis (Mibelli). Presented by Dr. Edward L. Murphy and (by invitation) Dr. Douglas Baldridge.  F. O., a 41-year-old white man, gave a family history which was not contributory. However, the patient had had warts on his hands when he was 8 years old which lasted until he was 14.At the age of 16, the patient first noted lesions on the knuckles of the fourth and fifth fingers of his right hand and the lesion present in the intergluteal fold. Apparently no new lesions appeared until he was 25 years old. At that time, the lesions on the left index finger and the left forearm and buttocks appeared. The lesions on the scrotum appeared at the age of 30. The lesions are very slow to enlarge and are completely asymptomatic.Examination reveals plaques on the knuckles of the fourth and fifth fingers of the right hand, 2 by 2 cm.

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