Tehran University Medical Journal

Normal 0 false false false EN-GB X-NONE AR-SA MicrosoftInternetExplorer4 Background: Pleural malignant mesothelioma is an uncommon but extremely invasive tumor which originates from mesothelial cells and usually occures after prolonged exposure to asbestos. The aim of this study was to clinicopathologically evaluation of 40 patients with pleural malignant mesothelioma and the main factors influencing their prognosis.
Methods: In this study patients with definitive diagnosis, who had been followed up for at least three years were studied based on gender, age presenting symptoms, and clinicopathological patterns.
Results: Male to female ratio of the study patients was three to one any the average age of them was 55 years. Chest pain was the most common symptoms in 34(85%) patients. Most of the study patients were in Buchard stage I (37/5%) and the epithelial form was the most common pathological pattern 25(62.5%). 19(47.5%) of cases received only radiotherapy and chemotherapy. Extrapleural pneumonectomy was performed on eight (20%) patients, seven (17.5%) patients underwent decortication and pleurectomy beside adjuvant therapy and 15% of the cases rejected any type of treatment. Surgical mortality occurred in one patient and the most common surgical complication was wound infection. The average survival rate was 12±1.2 months and the main factors influencing it were the patient's physiologic status, pathological form, stage of the disease and the pattern of pleural involvement.
Conclusions: Because the low survival rate after multimodality invasive treatments in mesothelioma, aggressive therapeutic methods were recommended in selected patients