• Inci Gulmez, Levent Kart, Hakan Buyukoglan, Ozlem Er, Suleyman Balkanli, and Mustafa Ozesmi.
• Department of Pulmonary Medicine, Medical Faculty, Kayseri Erciyes University, Turkey.
• Can. Respir. J. 2004 May 1; 11 (4): 287-90.

BackgroundMalignant mesothelioma (MM) is a fatal neoplasm which frequently results from exposure to asbestos or erionite.MethodSixty-seven patients with MM were seen between 1990 and 2001. Their clinical and radiological features, as well as the therapy, were retrospectively evaluated.ResultsIn 51 patients (76.1%), the MM was confined to the pleura, in 14 patients it was exclusively peritoneal and in two patients, it involved both areas. Of the 67 cases, 35 (52.2%) were women. The mean (+/- SD) age for all cases was 57.6+/-11.5 years. Dyspnea (67.2%), cough (55.2%) and chest pain (50.7%) were the most frequent symptoms of onset. Pleural effusion (92.4%) was the most common chest x-ray finding, whereas pleural effusion (60.8%), pleural nodules (34.7%) and pleural thickening (34.7%) were the most common computed tomography findings in pleural MM patients. The histological subtypes of MM were determined as epithelial in 60 patients (89.5%), sarcomatous in four patients (5.9%) and mixed in three patients (4.4%). Although 50.7% and 25.4% of the cases were exposed to erionite and asbestos, respectively, 23.9% of the cases recalled no exposure to asbestos or erionite. Exposures were environmental as opposed to occupational. Thirty-five patients (52.2%) were administered chemotherapy, and follow-up data were available for 22 patients. For these patients, the two-year survival rate was 22% and the two-year progression-free interval was 15.7%. There were no differences between patients with asbestos and erionite exposure.ConclusionMM should be considered when exudative pleural effusion is detected in a patient who has been exposed to asbestos or erionite. MM is a major public health problem in parts of Turkey and compulsory environmental control of fibrous mineral should be considered.

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