Retrospective Analysis of Imaging Characteristics of Tectal Gliomas.

Background And Purpose: Tectal gliomas (TGs) are rare tumors that involve critical locations in the brainstem, including the superior and inferior colliculi and the Sylvian aqueduct. The rarity of these tumors and the lack of large clinical studies have hindered adequate understanding of this disease. We sought to determine the association between imaging characteristics of TG and progression-free survival (PFS).

Clinical and survival characteristics of primary and secondary gliosarcoma patients.

Purpose: Gliosarcoma (GS) is classified by the World Health Organization as a subtype of glioblastoma with sarcomatous features. GS have a propensity to metastasize, as opposed to other gliomas, with lower 5-year survival rates than GBM patients. In this study, we identified differences in survival between patients with primary and secondary GS.