Meningiomas, like the one pictured here, typically show whorling architectural pattern and nuclear pseduoinclusions.  The vast majority of meningiomas are low grade (WHO Grade 1) dura-based tumors with good prognosis following complete resection.  However, recent studies have suggested that endothelial cell hypertrophy and/or microvascular proliferation in an otherwise typical meningioma are correlated with shorter progression free... Continue Reading →