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Uptodate Reference Title
Keyes punch for vulvar biopsy
Keyes punch for vulvar biopsy
The punch is placed perpendicular to the skin and firm, constant, downward pressure is applied with a circular twisting motion. A definite "give" occurs when the punch reaches the subcutaneous fat, indicating that a full-thickness cut has been made.
Reproduced with permission from: Hope K Haefner, MD.