PMC3245413_01
PMC3245413_02
Pre- and post- operative CT imaging of case 1. 1A: Preoperative CT showed enlarged ventricles. 1B and 1C: CT showed shrinking ventricles on postoperative days 1 and 3. 1D and 1E: CT on postoperative day 5 showed intraventricular hemorrhage and intracerebral hematoma along the path of ventricular catheter.
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F1
Computed tomography (CT) showed markedly enlarged ventricles (Figure 1A). The patient recovered well and routine follow-up CT on postoperative days 1 and 3 showed collapsing ventricles without evidence of hemorrhage (Figure 1B, 1C). Soon thereafter, the patient became unconscious; CT showed a large hematoma along the path of the ventricular catheter associated with an appreciable intraventricular hemorrhage (Figure 1D, 1E).
PMC3245413_03
Pre- and post- operative CT imaging of case 2. 2A: Preoperative CT showed hydrocephalus. 2B: Routine CT showed no evidence of hemorrhage on postoperative day 1. 2C: CT showed hemorrhage along the path of ventricular catheter on postoperative day 3.
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F2
CT showed hydrocephalus with interstitial edema capping the frontal horns of the lateral ventricles (Figure 2A). Twenty-four hours after surgery, CT imaging was normal and the pressure of the left decompressive window decreased (Figure 2B). Emergent CT demonstrated hemorrhage along the path of the ventricular catheter and in both lateral ventricles (Figure 2C).