Pleural mesothelioma in a lift mechanic

Our plain-English summary of Pleural mesothelioma in a lift mechanic, by M. Huncharek, J. Muscat, J. Capotorto (British Journal of Industrial Medicine, 1989).

The study

• Authors: M. Huncharek, J. Muscat, J. Capotorto
• Journal: British Journal of Industrial Medicine
• Published: 1989;46(7):500-1
• Type of article: Case report
• Cited by: 12 articles, as counted by NIH iCite
• Read it: PubMed · Publisher · Free full text
• In J-M's library: Johns-Manville's company medical library held a copy (J-M no. 000102).

Summary of the article

The authors described a case of pleural mesothelioma in a man who had worked for 30 years as a lift mechanic. To their knowledge, it was the first such report in this occupational group. The patient, a 56-year-old man with a 40 pack-year smoking history, was noted in February 1984 to have unequal pupils, later diagnosed as a right Horner's syndrome. A chest CT scan in May 1984 showed a right paracervical mass. Biopsies at thoracotomy showed desmoplastic malignant fibrous mesothelioma extending to the chest wall, diaphragm and pericardium. He received chemotherapy and radiotherapy. A head CT scan showed evidence of metastasis to the left frontal area, and he died in May 1985. Necropsy showed tumour infiltrating the ribs and thoracic vertebrae, metastases in the opposite lung, both adrenal glands and the liver, and fibrous plaques in the right pleura and pericardium. Necropsy restrictions meant the suspected brain metastasis could not be examined. Expert review classified the tumour as desmoplastic diffuse pleural mesothelioma, biphasic. An occupational questionnaire showed that his main asbestos exposure was to lift brake linings, which he routinely cut, fitted and removed. The authors considered it conceivable that he was also exposed to asbestos building insulation. Citing reports of mesothelioma in vehicle brake repair workers, they concluded that a similar high risk among lift brake mechanics appeared plausible and that increased surveillance of this group may be justified.

PubMed has no abstract for this study, and the article doesn't print one. We wrote this summary from the full article with the help of AI. It is not the authors' wording.

In plain English

This article was a case report about one man who developed pleural mesothelioma after working for 30 years as a lift mechanic. An occupational questionnaire showed that his main asbestos exposure was to lift brake linings, which he routinely cut, fitted and removed. The authors also considered it conceivable that he was exposed to asbestos building insulation during this work. He had a 40 pack-year smoking history. In 1984, aged 56, he was diagnosed by biopsy with mesothelioma. An expert pathologist later classified it as desmoplastic diffuse pleural mesothelioma, biphasic. He was treated with chemotherapy and radiotherapy and died in May 1985. Necropsy found tumour in the right chest and spread to the other lung, both adrenal glands and the liver. It also found fibrous plaques in the right pleura and pericardium. A suspected brain metastasis seen on a CT scan could not be examined. The authors stated that, to their knowledge, this was the first reported mesothelioma in this occupational group. They concluded that, in light of earlier reports of increased risk among vehicle brake repair workers, a similar high risk among lift brake mechanics appears plausible.

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: case report (one patient)
• Who was studied: One 56 year old man with a 40 pack-year smoking history, first examined in February 1984 and diagnosed in May 1984; the case came from the files of the Canadian Tumor Reference Center
• Exposure: 30 years of work as a lift mechanic. His primary asbestos exposure was to lift brake linings, which he routinely cut, fitted and removed during lift installation and maintenance. The authors considered exposure to asbestos building insulation also conceivable. No fiber type was reported.
• Main results:
  • Biopsy specimens were positive for desmoplastic malignant fibrous mesothelioma, extending to the chest wall, diaphragm and pericardium
  • An expert pathologist at the Canadian Tumor Reference Center classified the tumour as desmoplastic diffuse pleural mesothelioma, biphasic
  • Despite chemotherapy and radiotherapy, the patient died in May 1985
  • Necropsy found metastases in the contralateral lung, both adrenal glands and the liver
  • Fibrous plaques were present in the right pleura (right lower lobe) and the pericardium
  • A CT scan of the head showed evidence of metastasis to the left frontal area; this was not confirmed histologically
• The authors' conclusion: The authors stated that, to their knowledge, this was the first report of mesothelioma in a lift mechanic. Given previous reports of increased risk among vehicle brake repair workers, they concluded that a similar high risk among lift brake mechanics appears plausible, and that increased surveillance of this group for asbestos related cancers may be justified.
• Limitations the authors state:
  • Necropsy restrictions did not allow the suspected brain metastasis to be evaluated
  • No occupational history was available before the age of 26

Topics

The National Library of Medicine indexes this study under subjects our site covers: Mesothelioma.

Medical terms in this study, explained in our Lexicon: Pleural Mesothelioma, Horner Syndrome, CT Scan, Thoracotomy, Desmoplastic Mesothelioma, Mesothelioma, Diaphragm, Pericardium.

Related studies

• Pleural mesothelioma in a lift mechanic — D.J. Kilpatrick (1989)
• Pleural mesothelioma in a brake mechanic — M. Huncharek, J. Muscat, et al. (1989)
• Brake mechanics, asbestos, and disease risk — M. Huncharek (1990)
• Mesothelioma and lung cancer among motor vehicle mechanics: a meta-analysis — M. Goodman, M.J. Teta, et al. (2004)
• Mortality of auto mechanics. A ten-year follow-up — E.S. Hansen (1989)
• Malignant mesothelioma and asbestos exposure among auto mechanics: appraisal of scientific evidence — O. Wong (2001)

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