AN INTEREST in hemangiomas led to the examination of 1,096 infants to determine the natural rate of occurrence of the so-called strawberry mark. I had been unable to find this information in recent textbooks of dermatology and in other available literature. At the same time a record was kept of all other birthmarks.
All the infants were examined in the maternity nurseries of the Cooper Hospital, Camden, N. J. It was recognized that many strawberry marks are not present at birth but appear shortly thereafter. Accordingly, the examinations were made as near the end of the infants' stay in the hospital as possible. The great majority were between 4 and 8 days old. Of the 1,096 infants, 879 were white and 217 were Negro or part Negro. They were nearly evenly divided between boys and girls.
The strawberry mark was detected in 10 of the 879 white
PRATT AG. BIRTHMARKS IN INFANTS. AMA Arch Derm Syphilol. 1953;67(3):302-305. doi:10.1001/archderm.1953.01540030065006