Figure 3.

(A) On post-hoc analysis, patients with atypical teratoid/rhabdoid tumors (ATRT) had significantly lower age at presentation compare to all other tumor types except medulloblastoma and pilocytic astrocytoma. Patients with medulloblastoma, pilocytic astrocytoma, and ependymoma were significantly younger compared to those with metastasis, lymphoma, hemangioblastoma, and subependymoma. Patients with metastasis and hemangioblastomas were also older than those with anaplastic astrocytoma, low-grade glioma, and glioblastoma multiforme. (B) On post hoc analysis, metastases, hemangioblastomas, and lymphomas had larger diameter of peritumoral FLAIR hyperintensity compared to medulloblastoma, pilocytic astrocytomas, ependymomas, low-grade glioma, ATRT, and subependymomas—likely since latter tumors tend to be intraventricular with virtually no peritumoral edema. Also, the peritumoral FLAIR hyperintensity surrounding metastases, and hemangioblastomas was larger in diameter compared to anaplastic astrocytoma, and glioblastoma multiforme. (C) On post hoc analysis of tumor volumes, pilocytic astrocytomas, medulloblastomas, and ATRTs had larger size compared to metastases. The ATRTs were also significantly larger compared to subependymomas. ATRT, atypical teratoid/rhabdoid tumors; FLAIR, fluid attenuated inversion recovery.