The observation by one of us (E. F. C.) of 3 instances of pityriasis rosea in pregnant women during a period of two weeks caused us to be on the lookout for such coincidences. All cases of pityriasis rosea in women of the ages 17 to 48 years inclusive were investigated from this standpoint. The nonpregnant patients were often single women, while those who were pregnant were all married. The cases were observed in the private practice of one of us (E. F. C.) and at the skin dispensary of the Jefferson Medical College Hospital.
Two patients whose cases were included among those arising during pregnancy were first seen during the week following delivery, and it was pretty clearly evident that the outbreak had been present and unrecognized before childbirth. In the table their outbreak is listed as starting in the ninth month of pregnancy.
All cases recorded were typical
CORSON EF, LUSCOMBE HA. COINCIDENCE OF PITYRIASIS ROSEA WITH PREGNANCY. Arch Derm Syphilol. 1950;62(4):562–564. doi:10.1001/archderm.1950.01530170088012
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