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- A technique used to help determine the stage (extent) of melanoma and certain squamous cell cancers. A sample of skin that contains tumor tissue is examined under a microscope to find out how thick the tumor is and/or how deeply the tumor has grown into the skin or connective tissues.
National Cancer Institute - Cite This Source - This Definition
- basal cell, Melanoma, non-melanoma skin cancer, nonmelanoma skin cancer, skin cancer, stage I nonmelanoma skin cancer, stage IV nonmelanoma skin cancer