RT Journal Article SR Electronic T1 MR Imaging of Papillary Tumor of the Pineal Region JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 187 OP 189 DO 10.3174/ajnr.A0784 VO 29 IS 1 A1 A.H. Chang A1 G.N. Fuller A1 J.M. Debnam A1 J.P. Karis A1 S.W. Coons A1 J.S. Ross A1 B.L. Dean YR 2008 UL http://www.ajnr.org/content/29/1/187.abstract AB SUMMARY: We report the imaging features of 4 cases of patients with papillary tumor of the pineal region, a tumor newly recognized in the 2007 World Health Organization “Classification of Tumors of the Nervous System.” In each case, the tumor was intrinsically hyperintense on T1-weighted images with a characteristic location in the posterior commissure or pineal region. The pathologic hallmarks of the tumor are discussed, including a possible explanation for the MR imaging characteristics in our cases.