Delayed bleeding after gamma knife surgery for meningioma.

Abstract

We report the occurrence of haemorrhage in a meningioma after gamma knife surgery.A 52-year-old woman had undergone gamma knife radiosurgery for a growing meningioma in the left tentorial hiatus three years earlier (A radiation dose of 15 Gy was administered to the margin, with a maximum dose of 30 Gy, Fig. 1a). The size of the mass decreased steadily, and central lucency was seen in the follow-up magnetic resonance images, a usual finding seen after gamma knife surgery (MRI, Fig. 1b). However, a MRI taken at the 30-month follow-up showed the tumour to be swollen, and peritumoural oedema had increased (Fig. 1c). Three years later, apoplectic symptoms occurred, and computed tomography revealed a peritumoural haemorrhage, with oedema (Fig. 1d). An emergency craniotomy was carried out, and the biopsy showed a transitional type of meningioma, with vasculopathy and necrosis. After operation she had a right hemiparesis and a visual defect.

• Authors: C H Kim, D G Kim, S H Paek, H-T Chung, Y L Choi, J G Chi
• Journal: Acta neurochirurgica (Acta Neurochir (Wien)) Vol. 146 Issue 7 Pg. 741-2 (Jul 2004) ISSN: 0001-6268 [Print] Austria
• PMID: 15197619 (Publication Type: Case Reports, Comment, Journal Article, Research Support, Non-U.S. Gov't)

Topics

• Female
• Humans
• Meningeal Neoplasms (surgery)
• Meningioma (surgery)
• Middle Aged
• Postoperative Hemorrhage (etiology)
• Radiosurgery (adverse effects)
• Time Factors