Malignant Pleural Mesothelioma is an aggressive and refractory disease , the most aggressive treatment plan offered to these patients include trimodalitiy approach with chemotherapy as the mainstay of treatment . the rationale of post operative Radiotherapy is to sterilize the post operative volume to reduce local failure meanwhile minimizing toxicities in this trial we are going to assess the safety and efficacy of Radiotherapy in Mesothelioma patients poat Pleural decortication

This study will include malignant Pleural Mesothelioma patients treated by trimodalitiy approach starting with neoadjuvant chemotherapy followed by surgery in the form of Pleural decortication then all patients will receive post operative hemithoracic radiation

Inclusion Criteria:

• Evidence of metastatic disease.
• Underwent Pleural decortication.
• Able to provide informed consent.

Exclusion Criteria:

• Poor pulmonary function tests.
• Recurrent or palliative cases.
• Inability to attend full course of Radiotherapy or follow up visits.