The width of the cutaneous surgical defects created may vary slightly, based on the size of the cat and its facial conformation. In general, a 4- to 5-mm-wide skin resection allows for sufficient skin tension to elevate the elastic alar folds and depress the skin rostral to the sulcus. The 4-mm biopsy punch option is technically easier to perform than the use of a No. 11 scalpel blade, especially in smaller cats. The firmer underlying tissue support facilitates the insertion and cutting action of the biopsy punch. Wider resection is possible if 2 skin punches are performed immediately adjacent to, or slightly overlap one another; this was not necessary in these cats.