[Solved] How can phospholipids form a film when mixed in water? Biopsy: The removal and examination of tissue samples from the body for diagnostic purposes, often to determine the presence or extent of a disease. Excision: The surgical removal of a foreign body or of tissue. Microscopic Examination: The detailed analysis of tiny objects or structures using a microscope to observe features not visible to the naked eye. Cryosurgery: A surgical technique that uses extreme cold, often liquid nitrogen, to destroy abnormal or diseased tissue, including skin lesions.