Research symptoms & diagnosis of Mesothelioma: 1  Overview -- Mesothelioma. 2  Diagnostic Tests for Mesothelioma. 3  Home Diagnostic Testing.  Complications 1  -- Mesothelioma. Doctors & Specialists.  Misdiagnosis and Alternative 1  Diagnoses. Hidden Causes of Mesothelioma.  Other Causes -- causes of these or similar symptoms.