Fig. 1From: Paroxysmal sympathetic hyperactivity in brainstem-compressing huge benign tumors: clinical experiences and literature review a. Preoperative radiologic imaging of patient 1 with PSH. Huge size (8.1 cm) extraaxial calcified mass over left middle cranial fossa and posterior cranial fossa is compressing brainstem. This mass originates from petrosal apex and displaces midbrain, pons, and middle cerebellar peduncle to right side. (Clockwise direction; T2WI coronal, T1W enhance coronal, CT with enhance, T1W enhance axial). b. Postoperative (POD 20) CT scan showing residual calcified mass adjacent to brainstem and hemorrhage, edema in brainstemBack to article page