has_specified_input biopsy skinpunch biopsy A biopsy that involves the collection of a cylinder of skin (including epidermis, dermis and superficial fat) using a punch tool. A three or four millimeter punch is used in s skinpunch biopsy proceedure. Nicole Vasilevsky http://healthlibrary.epnet.com/GetContent.aspx?token=b93d114e-5009-4f6a-9917-6c594254fcc7&chunkiid=14861 punch biopsy; skin biopsy skinpunch biopsy integument ready for release