RT Book, Section A1 Usatine, Richard P. A1 Smith, Mindy A. A1 Chumley, Heidi S. A1 Mayeaux, E.J. SR Print(0) ID 57681343 T1 Chapter 169. Cutaneous Horn T2 The Color Atlas of Family Medicine, 2e YR 2013 FD 2013 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-176964-8 LK accessmedicine.mhmedical.com/content.aspx?aid=57681343 RD 2024/03/29 AB A 74-year-old man asks about a lesion on the back of his right ear (Figure 169-1). It has been present for approximately 5 years. Although the lesion does not bother him, his wife is concerned because it has been slowly growing. Shave biopsy revealed that the horn was from a basal cell carcinoma. The patient was referred for Mohs surgery to excise the remainder of the cancer.