Loading Stack -
0 images remaining
A heterogeneously enhancing extra-axial solid mass with a large cystic component is noted on the left. Underlying sulci and gray matter are distorted. Some underlying vasogenic oedema significant mass effect are present.
The solid component demonstrates some restricted diffusion (similar ADC to parenchyma). Punctate susceptibility on the gradient echo sequences with no identifiable calcification on the CT (not shown) likely represents hemosiderin.
Conclusion: The imaging characteristics are somewhat atypical, while the large cystic component and the lack of significant contrast enhancement on CT is atypical for meningiomas, however the extraaxial location, diffusion restriction and the overall high prevalence of meningiomas suggests that meningioma is most likely, particularly an atypical or malignant meningioma. Other differentials include meningosarcoma or haemangiopericytoma.