Extraocular well-differentiated sebaceous tumors with overlying cutaneous horns: four tumors in three patients. - Jhuang, Jie‐Yang; Liao, Shu‐Lang; Tsai, Jia‐Huei; Chang, Hsiao‐Ching; Kuo, Kuan‐Ting; Liau, Jau‐Yu (Journal of Cutaneous Pathology, 2014)