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Bandlike Pigmentation of the Forehead. Presented by Dr. Charles Wolf.
I. F., a married man aged 57, born in Russia, states that the peculiar pigmentation of the forehead appeared eight months ago and that there was no evidence of preceding inflammatory change in the involved area. Long before the appearance of the pigmentation the patient had been wearing the same hat. He states that he did not apply any medicament locally.
There is a transverse dark brown pigmentation about 4 cm. wide extending from the extreme right to the extreme left in the middle of the forehead. No other areas of pigmentation are present on any part of the body.
Dr. Paul Gross: I should make a tentative diagnosis of melanodermatitis toxica of a localized type. A biopsy would probably reveal some inflammatory changes suggesting lichen planus. The bandlike distribution on the forehead points to a chemical
Silver H, Chargin L. BRONX DERMATOLOGICAL SOCIETY. Arch Derm Syphilol. 1935;32(3):504–520. doi:10.1001/archderm.1935.01470030146021
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