Case 62-1963: Case Records Of The Massachusetts General Hospital

Our plain-English summary of Case 62-1963: Case Records Of The Massachusetts General Hospital, by J.H. Knowles, J.R. Dreyfuss, E.W. Wilkins, et al (1963).

The study

• Authors: J.H. Knowles, J.R. Dreyfuss, E.W. Wilkins, B. Castleman, L. Soutter, K.T. Bird, K.J. Isselbacher, P.S. Russell
• Published: New England Journal Of Medicine 269(14):747-754, October 3 (1963)
• Type of article: Journal article
• Our copy: from Johns-Manville's own medical library, J-M no. 002622. The article is still under copyright, so we describe it here rather than post it.

In plain English

This article is a clinicopathological case record from the Massachusetts General Hospital. It discusses one patient, a fifty-six-year-old plumber admitted because of chest pain. He had worked as a plumber for forty years and had spent about half of that time installing insulation on boilers and pipes. He had smoked one and a half packages of cigarettes daily for many years. Earlier surgery at another hospital had found "dense fibrotic pleuritis." X-ray films showed erosion of the right fourth and fifth ribs. The discussing physician, Dr. Knowles, diagnosed pulmonary asbestosis with a pleural mesothelioma. An open biopsy at this hospital showed severe chronic pleuritis with asbestos bodies but no tumor cells. Later, a nodule removed from the abdomen was judged malignant, and the patient died ten days after that operation. The anatomical (autopsy) diagnoses were pulmonary asbestosis and bilateral pleural mesothelioma. The tumor extended into the lung, mediastinum, pericardium, ribs, diaphragm and liver, with metastases to the lungs, liver and vertebras. An asbestos body was found among the tumor cells in a metastasis.

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 (weekly clinicopathological exercise: case presentation, differential diagnosis by a discussant, then pathological findings)
• Who was studied: one fifty-six-year-old male plumber admitted to the Massachusetts General Hospital because of chest pain
• Exposure: forty years as a plumber, about half of that period spent installing insulation on boilers and pipes; fiber type not stated. He had also smoked one and a half packages of cigarettes daily for many years
• Main results:
  • At an earlier exploratory thoracotomy with pleural decortication at another hospital, the pathological diagnosis was dense fibrotic pleuritis
  • X-ray films showed loss of the anterior cortex of the right fourth and right fifth ribs, consistent with erosion or destruction
  • The open biopsy of the pleura and lung at this hospital showed severe chronic pleuritis associated with asbestosis, with asbestos bodies; no tumor cells were seen
  • A nodule removed from the abdomen at a later procedure was judged to be a malignant lesion
  • The patient died ten days after this later operation
  • At autopsy the vertebras were involved by metastasis rather than by direct extension
  • An asbestos body was found among the mesothelial tumor cells in a metastasis
• The authors' conclusion: The anatomical diagnoses were pulmonary asbestosis and bilateral pleural mesothelioma, with extension into lung, mediastinum, pericardium, ribs, diaphragm and liver, and metastases to the lungs, liver and vertebras. The discussant, Dr. Knowles, had diagnosed pulmonary asbestosis with a pleural mesothelioma before the pathology was presented.

Topics

Medical terms in this study, explained in our Lexicon: Asbestosis, Pleural Mesothelioma, Biopsy, Asbestos Bodies, Autopsy, Bilateral, Mediastinum, Pericardium.

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