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Congenital Cyst of Frontal Bone. Presented by Dr. Maurice J. Costello.
J. S., a girl 7 months old, was first seen by me on Dec. 21, 1943, because of a nevus simplex in the suboccipital region. At a subsequent visit her mother drew attention to a round, solid, bony prominence, the size of a cherry pit, in the region of the inner half of the left eyebrow. When the infant arched her eyebrows, a bony depression, or defect, could be seen just medial to this area.
Dr. David Bloom: This is a dermoid cyst, which is found most frequently in this region, which corresponds embryologically to the region of the branchial cleft, where developmental disturbances take place.
Dr. Herman Sharlit: Does Dr. Bloom mean that these are deposits of cholesterol?
Dr. David Bloom: No, they are cysts which contain sebaceous glands and hair, and they may contain
Cipollaro AC, Sachs W. MANHATTAN DERMATOLOGIC SOCIETY. Arch Derm Syphilol. 1945;52(1):56–58. doi:10.1001/archderm.1945.01510250061019