In a cervical punch biopsy, the cervix may be stained with iodine solution in order to see abnormalities better. These areas of tissue are then sampled and examined. Update Date: 06/10/2008James R. Mason, MD, Oncologist, Director, Blood and Marrow Transplantation Program and Stem Cell Processing Lab, Scripps Clinic, Torrey Pines, California. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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