penumoconiosis in a polytetrafluoroethylene spray worker:a case report with an occupational hygiene study

Namhoon LeeKiook BaekSoohyun ParkInho HwangInsung ChungWonil ChoiHyera JungMiyoung LeeSeonhee Yang
Dept. of Preventive Medicine (예방의학); Dept. of Internal Medicine (내과학); Dept. of Pathology (병리학)
Issue Date
Annals of Occupational and Environmental Medicine, Vol.30() : 37-37, 2018
Background: Using analysis of air samples from the workplace, we report on one case of pneumoconiosis in an individual who has been working in a polytetrafluoroethylene (PTFE) spraying process for 28 years. Case presentation: The patient was diagnosed with granulomatous lung disease caused by PTFE using computed tomography (CT), lung biopsy and electron microscopy. To assess the qualitative and quantitative exposure to PTFE in workplace, Fourier transform infrared spectroscopy (FT-IR), energy-dispersive X-ray spectroscopy (EDX) and thermogravimetric analysis (TGA) were performed on air samples from the workplace. The presence of PTFE particles was confirmed, and the airborne concentration of PTFE was estimated to be 0.75 mg/m3. Conclusions: This case demonstrates that long-term exposure to PTFE spraying can cause granulomatous lung lesions such as pneumoconiosis; such lesions appear to be caused not by the degradation products of PTFE from high temperatures but by spraying the particles of PTFE. Along with air-sampling analysis, we suggest monitoring the concentration of airborne PTFE particles related to chronic lung disease.
Occupational diseasesPneumoconiosisPolytetrafluoroethylene
Appears in Collections:
1. Journal Papers (연구논문) > 1. School of Medicine (의과대학) > Dept. of Preventive Medicine (예방의학)
1. Journal Papers (연구논문) > 1. School of Medicine (의과대학) > Dept. of Internal Medicine (내과학)
1. Journal Papers (연구논문) > 1. School of Medicine (의과대학) > Dept. of Pathology (병리학)
Keimyung Author(s)
정인성; 이미영; 최원일; 정혜라
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