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- Ami Aoki, Akira Saito, Kenjiro Shima, Yosuke Kimura, Katsuaki Asakawa, Riuko Ohashi, Hajime Umezu, Takuro Sakagami, Hiroshi Moriyama, and Toshiaki Kikuchi.
- Department of Respiratory Medicine and Infectious Diseases, Niigata University Graduate School of Medical and Dental Sciences, Japan.
- Intern. Med. 2022 Dec 15; 61 (24): 371337173713-3717.
AbstractWe herein report a 45-year-old-man with multiple foreign body granulomas in the lungs caused by polytetrafluoroethylene (PTFE). A mass in the right lower lobe of the lung and bilateral centrilobular lung nodules were found unexpectedly during the patient's visit to a hospital for a respiratory infection. The patient's occupation for 26 years involved spraying PTFE. A lung biopsy using bronchoscopy revealed granulomatous lesions and giant cells. The presence of fluorine in the granulomatous lesions was confirmed using an electron probe microanalyzer with wavelength dispersive spectrometer. Fluorine is a component of PTFE and is not found in normal lung tissue.
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