Five carpenters in a television set factory had allergic contact dermatitis of the hands, forearms and neck after contact with the sawdust of the Brazilian rosewood substitute Machaerium scleroxylon Tul. (Pao ferro). Patch tests with R-3,4-dimethoxydalbergione from Pao ferro and with two other
In recent years an increasing number of cases of primary irritant and allergic contact dermatitis has been observed after using the South-American timber Pao ferro (Machaerium scleroxylum). Since 1978 140 cases have come to our knowledge. The patients were mainly cabinet and furniture makers
A 40-year-old woman developed dermatitis of the left forearm after wearing a bracelet manufactured from Brazilian rosewood (Dalbergia nigra All.). Swelling of the lips, itching and vesicles recurred when she played a recorder made from the same timber some years later. Epicutaneous tests were
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