As an expert in the field of medical diagnostics, I can explain the process of diagnosing cancer. Cancer is typically
diagnosed by a pathologist who examines cell or tissue samples under a microscope. This process is known as
pathology. In some instances, additional tests on the cells' proteins, DNA, and RNA can provide further information to help doctors determine if there is
cancer present. The tissue sample that is taken for examination is called a
biopsy specimen.
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