For a number of years we have been familiar with the literature concerning a curious pigmentation of the skin, originally described by Freund,1 in 1916, and later named Berlock dermatitis by Rosenthal.2 This condition results from the application of toilet waters to the skin immediately before it is exposed to the sunlight.
During the early part of the summer of 1929, we had our first occasion to observe an actual case, following this, four other cases were seen within a short period of time. The question arises as to whether it was a mere coincidence that this number of cases had been seen in such an unexpected manner. Since this is the first report of such a condition in the United States, we shall review briefly the literature and also present our conception of this dermatitis.
In 1916, Freund, in Triest, at Unna's request published reports of a
GROSS P, ROBINSON LB. BERLOCK DERMATITIS: UNUSUAL DERMATITIS AND PIGMENTATION FOLLOWING USE OF PERFUME. Arch Derm Syphilol. 1930;21(4):637–641. doi:10.1001/archderm.1930.01440100123012
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