The differential diagnosis for this lesion included a benign intradermal nevus and a basal cell carcinoma. So the FP recommended a shave biopsy to be sure that it was not cancer. (See the Watch & Learn video on “Shave biopsy.”)
After obtaining patient consent, he injected the 1% lidocaine with epinephrine and waited 5 minutes for the epinephrine to begin to work. He performed the shave with a Dermablade, and used a cotton-tipped applicator to apply aluminum chloride to the site. He used a twisting motion and pressure to achieve hemostasis. He dressed the lesion with petrolatum and some gauze.
Dermatopathology showed that this mole was a benign intradermal nevus. The FP reassured the patient and recommended that she be careful to avoid sun exposure.
Photos and text for Photo Rounds Friday courtesy of Richard P. Usatine, MD. This case was adapted from: Karnes J, Usatine R. Basal cell carcinoma. In: Usatine R, Smith M, Mayeaux EJ, et al. Color Atlas of Family Medicine. 2nd ed. New York, NY: McGraw-Hill; 2013:989-998.
To learn more about the Color Atlas of Family Medicine, see: www.amazon.com/Color-Family-Medicine-Richard-Usatine/dp/0071769641/.
You can now get the second edition of the Color Atlas of Family Medicine as an app by clicking on this link: usatinemedia.com.