Terson's syndrome following an aneurysmal subarachnoid hemorrhage: an imaging prognostic finding you should recognize.

Terson’s Syndrome (TS) was originally described as intraocular hemorrhage associated with aneurysmal subarachnoid hemorrhage (SAH)1. It is a consequence of sudden rise in intracranial pressure (IP) that reduces venous return to the cavernous sinus or obstruct the retinochoroidal anastomoses and central retinal vein, culminating in venous stasis and ocular hemorrhage (Figure). TS has also been reported in nonaneurysmal SAH, severe traumatic injuries or venous thrombosis2. Current literature has highlighted TS as an important life-threatening prognostic finding3,4. Recognizing TS on fundoscopy or CT is recommended and effective control of IP is imperative to reduce the risk of mortality in this critical setting5.