7 resultados
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
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
Late-type sensitizations against wood are rare and are mostly seen in patients with occupational contact with saw dust. Generally, commercial wooden products only lead to sensitization or dermatitis in cases when contact to the unprotected skin is direct, intensive and of longer Tropical woods are highly valued because of their strength, hardness, and resistance to moisture. These characteristics make them easy to work with and extremely durable, and that is why they have been used in the manufacture of wooden jewelry, musical instruments, furniture, and handles of many
A case of allergic contact dermatitis to olive wood occurred. To our knowledge, this is the first such case reported. The diagnosis was confirmed by positive patch tests to scrapings from olive wood and to the quinone compound fractions isolated from an extract of olive wood by thin-layer
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
Exotic wood species are used in the manufacture of furniture, musical instruments, tool handles, and other wooden items. Exposure to sawdust of the wood can produce dermatitis on exposed areas in woodworkers. We studied 7 patients, gaitas constructors who used caviuna wood to make their instruments.