Diffuse pleural thickening in an asbestos-exposed population: prevalence and causes
Journal Article
·
· AJR, Am. J. Roentgenol.; (United States)
Two types of pleural reaction have been described in association with asbestos exposure: pleural plaques and diffuse pleural thickening. This study was undertaken to determine the prevalence and causes of diffuse thickening in asbestos-exposed persons. Serial chest radiographs in 1373 exposed individuals and 717 controls were interpreted according to the ILO scheme by two B readers. Among the exposed group, plaques and diffuse thickening occurred with almost equal frequency, 16.5% and 13.5%, respectively. Of the 185 cases with diffuse thickening, the radiographic appearance was most often due to the residual of a benign asbestos effusion (31.3%) or confluent plaques (25.4%). The most commonly held explanation of diffuse thickening, an extension of pulmonary fibrosis to the visceral and parietal pleura, was actually infrequent (10.2%). Among the group with diffuse thickening without asbestosis, the forced vital capacity and single-breath diffusing capacity were significantly lower than those of comparable normal persons and those with confluent plaques.
- Research Organization:
- Harvard Medical School, Boston, MA
- OSTI ID:
- 5968986
- Journal Information:
- AJR, Am. J. Roentgenol.; (United States), Journal Name: AJR, Am. J. Roentgenol.; (United States) Vol. 144:1; ISSN AAJRD
- Country of Publication:
- United States
- Language:
- English
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560306* -- Chemicals Metabolism & Toxicology-- Man-- (-1987)
62 RADIOLOGY AND NUCLEAR MEDICINE
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ASBESTOS
BIOLOGICAL EFFECTS
BIOMEDICAL RADIOGRAPHY
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MEDICINE
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OCCUPATIONAL DISEASES
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560306* -- Chemicals Metabolism & Toxicology-- Man-- (-1987)
62 RADIOLOGY AND NUCLEAR MEDICINE
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ASBESTOS
BIOLOGICAL EFFECTS
BIOMEDICAL RADIOGRAPHY
BODY
DIAGNOSTIC TECHNIQUES
FIBROSIS
LUNGS
MEDICINE
NUCLEAR MEDICINE
OCCUPATIONAL DISEASES
ORGANS
PATHOLOGICAL CHANGES
PERSONNEL
RADIOLOGY
RESPIRATORY SYSTEM