The FP suspected that it could be a skin cancer because any nonhealing lesion in sun-exposed areas could be skin cancer (especially basal cell carcinoma and squamous cell carcinoma).
He explained this to the patient and obtained written consent for a shave biopsy. He told the patient that the biopsy would likely leave an indentation in the involved area, but since treating the sore would likely require a second surgery, this indented area could be cut out and repaired with sutures. The patient indicated that he was more concerned about getting a proper diagnosis than he was about the appearance of the biopsy site.
The physician injected the area with 1% lidocaine and epinephrine for anesthesia and to prevent bleeding. (Remember, it is safe to use injectable epinephrine along with lidocaine when doing surgery on the nose. See “Biopsies for skin cancer detection: Dispelling the myths.”) The shave biopsy was performed using a Dermablade. (See the Watch & Learn video on “Shave biopsy.”) The pathology report revealed squamous cell carcinoma. The patient was referred for Mohs surgery to get the best cure and cosmetic result.
Photo courtesy of Jonathan Karnes, MD and text for Photo Rounds Friday courtesy of Richard P. Usatine, MD. This case was adapted from: Karnes J, Usatine R. Squamous cell carcinoma. In: Usatine R, Smith M, Mayeaux EJ, et al. Color Atlas and Synopsis of Family Medicine. 3rd ed. New York, NY: McGraw-Hill; 2019:1103-1111.
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