Donahoe et al. 2 report pleural biopsy to be diagnostic in 30 to 70 per cent of cases with effusion. Internal-mammary-lymph-node biopsy was evaluated as an alternative method for obtaining a ...

A specialist doctor (pathologist) looks at the biopsy under a microscope. If there are melanoma cells, they will work out the stage of the cancer. You may have some other tests and scans to help with ...