RT Journal Article SR Electronic T1 Interstitial lung disease more than 40 years after a 5 year occupational exposure to talc JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 1412 OP 1415 DO 10.1183/09031936.98.11061412 VO 11 IS 6 A1 C Gysbrechts A1 E Michiels A1 E Verbeken A1 J Verschakelen A1 D Dinsdale A1 B Nemery A1 M Demedts YR 1998 UL http://erj.ersjournals.com/content/11/6/1412.abstract AB A 62 yr old woman was initially diagnosed with sarcoidosis until a thoracoscopic biopsy revealed the presence of numerous birefringent particles in fibrotic areas of the centrilobular lung zones. These particles were examined by electron microscopy and X-ray spectrometry and characterized as impure talc. Further inquiry into her occupational history revealed that she had worked from the age of 14-18 yrs in a factory making rubber hoses, where she had had an intense exposure to talc. There was no evidence of silicosis or asbestosis, and other significant causes of interstitial lung disease were excluded. This case emphasizes the importance of a thorough occupational history, which may reveal a remote and forgotten exposure to a significant cause of interstitial lung disease. Although this presentation of talcosis is unusual, this case suggests that even a relatively short, but presumably intense exposure to talc more than 40 yrs previously may be a cause of progressive lung fibrosis.