bakterieller Hirnabszess

School ager

with pus draining from the right ear. Axial CT with contrast of the brain with bone windows (left) shows opacification and destruction of the right mastoid air cells while axial CT with contrast of the brain with soft tissue windows (right) shows a large low density ring enhancing lesion in the right cerebral hemisphere that is causing midline shift to the left.The diagnosis was right coalescent mastoiditis with an intracranial abscess.