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Ann Thorac Surg 1981;31:53-60
© 1981 The Society of Thoracic Surgeons

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Articles

Diffuse, Mixed Malignant Pleural Mesothelioma

From the College of Medicine and Dentistry of New Jersey–Rutgers Medical School, Department of Surgery, Piscataway, NJ

^* Address reprint requests to Dr. Mackenzie, Professor and Chairman, Department of Surgery, CMDNJ–Rutgers Medical School, Piscataway, NJ 08854

Forty-six patients with diffuse, mixed malignant pleural mesothelioma were treated between January, 1970, and May, 1979. All had a history of exposure to asbestos. The diagnosis was established by thoracentesis in 3 patients, thoracoscopy in 28, thoracotomy in 5, and minithoracotomy in 9. Mediastinoscopy was performed in 31 patients and bronchoscopy in 32. Mediastinoscopy was positive in only 1 patient, and in no patient was bronchoscopy positive.

Ten patients received no definitive therapy and survived an average of 9.1 months (1 lived for 16 months). Thirty-one patients received chemotherapy and survived an average of 9.6 months, the 2 longest survivors each lived for 24 months. Five patients appeared to have early disease and therefore underwent thoracotomy. In only 2 of these patients did resection of all gross disease appear possible. One patient with incomplete removal is still alive after 9 months. The other 4 are all dead, having survived an average of only 6.75 months.

We believe that pleural mesothelioma should be considered an unresectable neoplasm because of its multicentric origin and its diffusely invasive nature, and that attempts at partial or complete resection are not indicated. Until prospective, controlled studies demonstrate otherwise, patients with diffuse, mixed malignant mesothelioma should have the most benign surgical procedure necessary to establish a diagnosis.

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