The Radiology Of Asbestos-Related Diseases With Special Reference To Diffuse Mesothelioma

Our plain-English summary of The Radiology Of Asbestos-Related Diseases With Special Reference To Diffuse Mesothelioma, by A. Solomon (1981).

The study

• Author: A. Solomon
• Published: Seminars In Oncology 8(3):290-301, September (1981)
• Type of article: Journal article
• Our copy: from Johns-Manville's own medical library, J-M no. 000779. The article is still under copyright, so we describe it here rather than post it.

In plain English

This article was a narrative review of how asbestos-related diseases appear on chest X-rays and other imaging, with particular attention to diffuse malignant mesothelioma of the pleura. It reported no new study of patients. It described imaging signs, illustrated with example radiographs, and drew on earlier published work. The author described pleural plaques as usually bilateral and as sparing the lung apices and costophrenic sulcus. Calcification of plaques was said to usually appear 20 years or more after exposure, most often on the diaphragm. Asbestosis was described as mainly affecting the lower zones of the lungs. Pleural mesothelioma was said to commonly present with a large pleural effusion that can hide the tumor, and gross lobular thickening of the pleura around the lung was described as characteristic. The author listed features, such as enlarged hilar lymph glands and distant metastases, that point to lung cancer rather than mesothelioma. The author stated that in most centers conventional radiography remained the major diagnostic tool, with computerized tomography reserved for special situations because of its cost.

We wrote this plain-English summary from the full article with the help of AI, and a second AI model checked each sentence against the article. It is not the authors' wording; the abstract and the article are their own account.

What the study did and found

• Design: Narrative review of the radiology (imaging appearance) of asbestos-related diseases, with illustrative radiographs; no original patient study
• Who was studied: No study population; the article discusses imaging of people exposed to asbestos in general, including workers in mining, milling and manufacturing
• Exposure: Asbestos exposure in general (mining, milling, fiber extraction, manufacturing, processing, demolition, and non-industrial exposure near mines, dumps and factories); no doses or fiber types studied
• Main results:
  • The author described a routine posteroanterior chest film supplemented by 45-degree oblique views of both sides as allowing most pleural lesions to be seen in profile
  • Pleural plaques were described as sparing the lung apices and costophrenic sulcus
  • Calcification in a pleural plaque was described as usually occurring 20 years or more after exposure, with the diaphragm as the most common site of calcified plaques
  • Abnormal opacities in pulmonary asbestosis were described as predominating in the lower zones and usually affecting both lungs
  • The localized pedunculated fibrous form of pleural mesothelioma was described as having no special association with asbestos exposure, unlike diffuse malignant mesothelioma of the pleura
  • Diffuse pleural mesothelioma was described as commonly presenting with a large pleural effusion, with gross circumferential lobular pleural thickening as its characteristic feature
  • Hilar lymph gland enlargement, distant metastases and bony involvement with a relatively small lesion were described as more in keeping with primary lung cancer than with mesothelioma
• The authors' conclusion: The author stated that in most centers conventional radiography remains the major diagnostic tool, and that computerized tomography, although able to show plaques and fibrosis earlier, should be reserved for special situations because of its cost

Topics

Medical terms in this study, explained in our Lexicon: Mesothelioma, Chest X-Ray, Pleura, Pleural Plaques, Bilateral, Apices, Diaphragm, Pleural Mesothelioma.

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