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Surg Neurol. 1984 Apr;21(4):377-84.

Neurosurgical management of single brain metastasis.


A series of 74 consecutive cases undergoing craniotomy for single brain metastasis in the Beilinson Medical Center between October 1975 and October 1981 were reviewed. All patients underwent radiation therapy after craniotomy. The most common metastasis was that of unknown origin (35%), followed by lung (24%) and breast (16%). Overall median survival after craniotomy was 6.6 months. Overall 1- and 2-year survival rates were 30 and 15%, respectively. Operative mortality (30 days) was 15%. For the patients with metastases to the lung, median survival was 7.5 months and 1-year survival rate was 33%. It appears from this report that two dominant factors affect the prognosis of these patients. The first is the long latent interval (time between diagnosis of primary tumor and detection of metastasis). The second is the location of the metastasis; those with lesions in the cerebral hemispheres had a far better outcome than those with cerebellar lesions (p less than 0.0001).

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