Glioblastoma NOS (splenium)


The diagnosis of GBM was confirmed on histology. Other differential diagnoses are less plausible. GBM is the most frequent corpus callosal tumor. Another tumor which can involve the corpus callosum is lymphoma, but it is not hemorrhagic/necrotic-like this, and it is hyperdense on CT.

Note: IDH mutation status is not provided in this case and according to the current (2016) WHO classification of CNS tumors, this tumor would, therefore, be designated as a glioblastoma NOS