2Ye J, Nappi O, Swanson P E, et al. Proliferating pilartumors: a clinicopathologic study of 76 cases with a pro-posal for definition of benign and malignant variants[J].Am J Clin Pathol, 2004, 122(4): 566-574.
3Jones E W. Proliferating epidermoid cysts[J]. Arch Derma-tol, 1966, 94(1): 11-14.
4Pinkus S S. Classification of thrombophilic elastog-rams[J]. Lab Delo, 1969, 1:50-52.
5Peryassu M A, Peryassu B C, Peryassu R C, et al. Prolifer-ating trichilemmal tumor: a case on the nose of a 70-year-old man[J]. Case Rep Dermatol, 2013, 5(3): 248-253.
6Sharma R, Verma P, Yadav P, et al. Proliferating trichil-emmal tumor of scalp: benign or malignant, a dilemmafJ].J Cutan Aesthet Surg, 2012, 5(3): 213-215.
