“…Inflammation may be segmental 18,60,65 as well as diffuse. Tubercles, often with giant cells, sometimes with necrotic centres, may directly involve vessel walls, 20,35,60,69 usually the adventitia, 2,65,68,70 less often extending to the media or intima. 2,61 Thus, tuberculous cerebral vasculitis shares morphological features not only with other infectious vasculitides but also to some extent with immunological vessel disorders such as giant cell (temporal) arteritis, polyarteritis nodosa and Wegener's granulomatosis.…”