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what are the causes of occupational scleroderma and occupational scleroderma

what are the causes of occupational scleroderma and occupational scleroderma

The main causes of occupational scleroderma are long-term repeated exposure to chemicals such as vinyl chloride and its polymer

First, the cause of the disease

1. Scleroderma-like changes induced by perchloroethylene and trichloroethylene are similar to those caused by vinyl chloride. Perchloroethylene is an organic solvent for dry cleaning. Trichloroethylene is used as a cleaning agent for metal parts.

2. Insecticide-induced scleroderma-like changes can be accompanied by Raynaud phenomenon, and no visceral involvement has been reported. Pathogenic insecticides include chlordane, heplochlor, malathion, parathion, DDT, sodium dinitroorthocresate and 6-chlorocyclohexane.

3. Epoxy resin and other inducing factors Japan reported that 6 cases of scleroderma-like changes induced by epoxy resin were accompanied by joint pain, myalgia, weight loss and fatigue. The sclerosing agent 1, 1'bis (3-methyl-4-amino) cyclohexylmethane is considered to be the pathogenic factor, and the symptoms improve after stopping exposure.

4. Other factors Scleroderma-like changes have been reported among South African gold miners and some other Chinese. Skin lesions often involve upper limbs and face, without Raynaud phenomenon and visceral damage. Pulmonary edema and pulmonary fibrosis often precede skin damage.

Second, the pathogenesis

The mechanism is still unknown. According to Dinman et al. (1971), this disease is systemic rather than local.

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