RT Journal Article SR Electronic T1 Fibre glass induced synovitis. JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 530 OP 534 DO 10.1136/ard.43.3.530 VO 43 IS 3 A1 L G Cleland A1 B Vernon-Roberts A1 K Smith YR 1984 UL http://ard.bmj.com/content/43/3/530.abstract AB Chronic synovitis developed in the dorsal extensor sheath of the hand of a 25-year-old manufacturer of fibre glass reinforced boats and surfboards . Particles found in synovial fluid aspirates were similar in morphology and elemental content to unused fibre glass and particles found in dust from the workshop floor. It was concluded that hard disc grinding required during manufacture resulted in percutaneous implantation of small glass particles, leading to chronic synovitis and effusion.