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胸膜钙化可以在接触石棉粉尘之后许多年发生,但短期接触石棉也能引起胸膜钙化却不常见。形成胸膜钙化所需要的石棉粉尘的浓度和接触时间的长短尚不清楚。本文温习了Selikoff报告的20例接触石棉粉尘1～11周的时间在25～30年后发生了胸膜钙化,和另外28例仅接触了3～12个月发生了胸膜钙化。作者报告了二例孤立的胸膜钙化仅有8～11个月的石棉职业接触史而分别经过了19～22年的潜伏期之后发生的,并证实无其他胸膜及肺部疾患。
Pleural calcification can occur many years after exposure to asbestos dust, but it is uncommon for short-term exposure to asbestos to cause pleural calcification. The concentration of asbestos dust required for pleural calcification and the length of contact time are not known. This article reviews Selikoff’s report of 20 cases of asbestos dust exposure 1 to 11 weeks after pleural calcification in 25 to 30 years, and the other 28 cases only exposed to 3 to 12 months pleural calcification. The authors report two cases of isolated asbestos occupational exposure history with pleural calcifications of only 8-11 months that occurred after an incubation period of 19-22 years, respectively, and confirmed no other pleural and pulmonary conditions.