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Current concepts in leptomeningeal metastasis.
1University of San Diego, California.
Current Opinion in Oncology
|June 1, 1992
Summary
Leptomeningeal metastasis, a complication of cancer, affects the brain and spinal cord. Treatment involves radiation and chemotherapy delivered directly into the cerebrospinal fluid for better drug exposure.
Area of Science:
- Neurology
- Oncology
- Neuro-oncology
Background:
- Leptomeningeal metastasis (LM) is a frequent complication in patients with advanced cancer.
- It impacts the entire central nervous system, including the brain, spinal cord, and cranial nerves.
- Clinical symptoms are diverse, often presenting as a diagnostic challenge.
Purpose of the Study:
- To provide a comprehensive review of leptomeningeal metastasis.
- To summarize current knowledge on incidence, presentation, diagnosis, and treatment.
- To discuss pathophysiology, staging, and survival outcomes.
Main Methods:
- Review of existing literature on leptomeningeal metastasis.
- Analysis of diagnostic criteria including cerebrospinal fluid cytology and neuroimaging.
- Evaluation of treatment strategies such as radiotherapy and intra-CSF chemotherapy.
Main Results:
- Diagnosis relies on detecting malignant cells in cerebrospinal fluid or characteristic clinical/radiographic findings.
- Treatment is palliative, targeting the entire neuraxis.
- Intra-cerebrospinal fluid chemotherapy, particularly via intraventricular instillation, enhances drug exposure.
Conclusions:
- Leptomeningeal metastasis presents a significant challenge in cancer care.
- Effective management requires a multimodal approach addressing the entire neuraxis.
- Optimizing drug delivery via the cerebrospinal fluid pathway is crucial for therapeutic success.