How is Mesothelioma Diagnosed?

A typical diagnosis would carry out as the following. 1=Patient notes symptoms.2=Primary physician finds a common illness, symptoms continue under medical supervision to see if they will get worse after that the patient returns for additional testing. the way they carry out the tests could be urine sample. blood sample. Patients bodily fluids. X-Ray. C-T Scans. MRI. PET Scans. Saliva. 3=after taking tests and if they come  back positive for lets say Mesothelioma he will be taken to a specialist for further diagnosis. Patient will then come in for Monthly/Weekly visits depending on severity of the disease.