The early symptoms of this cancer are generally non-specific, and may lead to a delay in diagnosis.   Symptoms for Pleural Mesothelioma (involving the lung/chest area) are: chest pain and pain in the lower back difficulty breathing coughing weight loss fever muscle weakness and sensory loss swelling of the face and arms hoarseness coughing up blood night sweats. Symptoms of Peritoneal Mesothelioma (involving the abdominal/stomach cavity, liver, spleen or the bowel) are: abdominal pain or bloating due to fluid accumulation in the abdominal cavity nausea and vomiting swelling of the feet fever impaired bowel function weight loss anemia. These symptoms also may be caused by other less serious conditions. Only a doctor can make a definitive mesothelioma diagnosis.