RT Journal Article SR Electronic T1 Proliferating Trichilemmal Cysts of the Scalp on CT JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 712 OP 714 VO 27 IS 3 A1 Chang, S.J. A1 Sims, J. A1 Murtagh, F.R. A1 McCaffrey, J.C. A1 Messina, J.L. YR 2006 UL http://www.ajnr.org/content/27/3/712.abstract AB SUMMARY: Proliferating trichilemmal cysts, also known as pilar tumors, are slow-growing lobulated masses most commonly found on the scalp of elderly women. We present the case of a 69-year-old woman with a 25-year history of multiple enlarging scalp masses. The patient was evaluated for surgical consultation after the dominant mass presented with malignant degeneration. A CT of the head revealed multiple large, subcutaneous, cystic masses with calcifications.