Abstract
BACKGROUNDPineal apoplexy is a rare apoplectic event in the pineal region with various possible causes. We report a case of massive hemorrhage in the pineal region associated with a cavernous angioma, and discuss the pathogenesis of pineal apoplexy.CASE DESCRIPTIONAn 11-year-old girl presented with nausea and vomiting persisting for 1 week. Neuroimaging revealed enlarged ventricles and a 4 cm round mass in the pineal region consistent with hematoma. Two weeks after cerebrospinal fluid drainage, the mass was totally removed via the occipital transtentorial approach. The postoperative course of the patient was uneventful. Magnetic resonance imaging after the operation confirmed two paraventricular lesions with surrounding hemosiderin rings, characteristic of cavernous angioma. Histologic examination showed large hematomas and numerous vascular spaces lined by a single layer of endothelium. The diagnosis was pineal apoplexy associated with cavernous angioma, based on the histologic and radiological findings.CONCLUSIONSPineal cavernous angiomas are extremely rare, with only fourteen cases reported previously. We recommend total removal of the causative lesion in cases of pineal apoplexy to prevent repeated bleeding or life-threatening massive hemorrhage.
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