Riehl's Melanosis. Presented by Dr. Anthony N. Domonkos.
Head, trunk, and hands
This 70-year-old male foundry worker who has been retired for 5 years developed black pigmentation on the exposed areas of his skin, approximately 8 months ago. There was no antecedent dermatitis present. The patient denies sunburn preceding the pigmentation, and the application of any medications including petrolatum.As a foundry worker he was employed in the making of the forms and was not exposed to heat. This patient was found to have a 3 plus Mazzini with a negative VDRL, negative Kolmer complement fixation, and a positive TPI. No stigmata of syphilis were found. On the basis of this, he received 900,000 units of penicillin twice weekly for 12 weeks for a total of 21,600,000 units; the last injection was on Feb. 2, 1961.There is no history of exposure to tar.
Meyers JH, Jewell EW. METROPOLITAN DERMATOLOGICAL SOCIETY OF NEW YORK. Arch Dermatol. 1961;84(5):874. doi:10.1001/archderm.1961.01580170168026
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