A parenchymal hemorrhage, particularly in a younger patient, should trigger a careful scrutiny of relevant dural venous sinuses and cortical and deep veins for hyperdensity indicating thrombus, keeping in mind that acute thrombus only gradually becomes hyperdense. 

The location of this hemorrhage (inferior temporal lobe) is a classic location for a transverse / sigmoid sinus thrombosis, often secondary to mastoiditis (not present in this case).