RT Journal A1 Semins H, Null HM T1 GIant cutaneous horn JF JAMA JO JAMA YR 1969 FD December 22 VO 210 IS 12 SP 2285 OP 2285 DO 10.1001/jama.1969.03160380099033 UL http://dx.doi.org/10.1001/jama.1969.03160380099033 AB To the Editor:—  Cutaneous horns are superficial skin lesions projecting perpendicularly from the surface and rarely exceeding 1 to 2 cm in length. Our patient presented with a projection that is among the largest reported. Although this lesion was growing on a benign base, it is important for the physician to be informed about cutaneous horns because of their occasional occurrence on a malignant base.Report of a Case:—  A 69-year-old male Negro appeared at the surgical clinic of the Western Pennsylvania Hospital with a 5-year slowly increasing growth on the skin of the left arm. The patient gave no history of a previous lesion at that site and had no symptomatic complaints. The lesion was excised with the patient under local anesthesia, including a 1-cm margin of normal skin surrounding the base.The horn (Fig 1) measured 1.4 cm in diameter and 7.1 cm in length. It was hard,