Left mastoiditis that is complicated by subacute dural sinus thrombosis of the left sigmoid sinus as well as the superior transverse sinus with mild distension and loss of their signal void. Bilateral high frontoparietal sulcal FLAIR hyperinitensity consistent with subarachnoid hemorrhage as well as distension of the cortical veins with left fronto-parietal area (most notably at the left post-central gyrus and to lesser extent the pre-central gyrus) of diffusion restriction consistent with acute venous infarction.