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  • Title: [Brain metastases of bronchial and breast carcinoma. Differences in metastatic behavior and prognosis].
    Author: Nieder C, Niewald M, Hagen T.
    Journal: Radiologe; 1995 Nov; 35(11):816-21. PubMed ID: 8657883.
    Abstract:
    Evaluation of 135 cases with brain metastases from non-small-cell lung cancer (group 1) compared with 51 cases from small-cell lung cancer (group 2) and 56 cases from breast cancer (group 3) showed that the frequency of solitary metastases was significantly higher in group 1 and 3. However, in group 2 lesions without surrounding edema occurred more frequently. The rate of patients with extracerebral metastases was significantly higher in groups 2 and 3. The longest median interval between primary tumor and brain metastases was observed in breast cancer patients. The highest local remission rate was seen in small-cell lung cancer if patients who received whole-brain irradiation of 30 Gy alone were compared (63% vs 45% in group 1 and 52% in group 3). However, with regard to clinical course no significant differences were recorded. Survival of lung cancer cases was similar, whereas breast cancer cases survived significantly longer, both after radiotherapy alone and after surgery plus radiotherapy. This might be caused by differences in the natural course of the two diseases as well as adjuvant treatment modalities like hormone and chemotherapy. In conclusion, because long-term survivors were observed only in the breast cancer group, these patients probably have the highest chance of profiting from a locally aggressive treatment approach.
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