CD24 and PRAME Are Novel Grading and Prognostic Indicators for Pineal Parenchymal Tumors of Intermediate Differentiation

The pineal parenchymal tumors of intermediate differentiation (PPTIDs) are extremely rare tumor entities. They exhibit low-risk (grade II) and high-risk (grade III) malignancies, which may lead to different therapies and prognosis. However, the histological grading criteria remains elusive, and nove