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Modeling Brain Metastases Through Intracranial Injection and Magnetic Resonance Imaging
Published on: June 7, 2020
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Brain metastases from breast cancer
Joana Santos1, Joana Arantes2, Eduarda Carneiro3
1Faculty of Medicine of the University of Porto, Alameda Professor Hernâni Monteiro, 4200-319 Porto, Portugal.
Clinical Neurology and Neurosurgery
|September 13, 2020
Summary
Breast cancer subtypes influence brain metastasis (BM) prognosis and imaging. Triple-negative breast cancer (BC) shows shorter survival, while HER2-positive BC has longer survival. Imaging features vary by subtype, aiding prediction but not distribution patterns.
Area of Science:
- Oncology
- Radiology
- Medical Imaging
Background:
- Breast cancer (BC) frequently leads to brain metastases (BM), affecting 10-16% of metastatic cases.
- Specific BC subtypes carry a higher risk of developing BM.
Purpose of the Study:
- To analyze prognosis, pattern, and imaging characteristics of BM in different BC subtypes.
- To correlate BC subtypes with the clinical course and radiological presentation of brain metastases.
Main Methods:
- Retrospective review of 147 patients with BC and BM from 2014-2018.
- Statistical analysis of patient records, focusing on BC subtype, survival, and imaging features.
Main Results:
- Triple-negative BC had the shortest overall survival (OS) and time to BM. HER2-positive BC had the longest OS.
- Estrogen-receptor positive BC showed the longest interval between initial diagnosis and BM. Larger lesions exhibited heterogeneous enhancement and T2WI/T2*WI characteristics.
- Triple-negative BC lesions were more heterogeneous on T1WI; hippocampal involvement was rare.
Conclusions:
- BC subtype can predict BM prognosis and some imaging features, but not metastatic distribution patterns.
- Findings suggest avenues for research in BM prevention, early detection, and treatment strategies tailored to BC subtypes.
