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Dural Metastasis in Breast Cancer: MRI-Based Morphological Subtypes and Their Clinical Implications

  • 0Department of Radiology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
Cancer Research and Treatment +

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March 21, 2024

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March 21, 2024

View abstract on PubMed

Summary

This summary is machine-generated.

Dural metastases (DMs) in breast cancer (BRCA) are linked to extracranial and skull metastases. While DMs do not worsen overall survival, diffuse DMs shorten the interval to leptomeningeal carcinomatosis.

Area Of Science

  • Oncology
  • Neurology
  • Radiology

Background

  • Breast cancer (BRCA) brain metastases are a significant clinical challenge.
  • Dural metastases (DMs) represent a distinct pattern of brain involvement.
  • Understanding factors influencing DM and their prognostic implications is crucial.

Purpose Of The Study

  • To identify clinical factors associated with BRCA dural metastases (DMs).
  • To compare the prognosis of DMs versus brain parenchymal metastases (BPMs) alone.
  • To analyze differences between DM subtypes and their impact on survival and leptomeningeal carcinomatosis (LMC).

Main Methods

  • Retrospective analysis of 119 patients with BRCA and brain metastases.
  • Comparison of clinical characteristics between patients with DMs and BPMs alone.
  • Kaplan-Meier analysis for overall survival after DM (OSDM) and time to LMC.

Main Results

  • DMs were associated with extracranial metastasis and skull metastases.
  • No significant difference in overall survival was observed between DM and BPM groups.
  • Diffuse DMs correlated with luminal-like subtype and skull metastasis, and had a shorter interval to LMC compared to nodular DMs.

Conclusions

  • Dural metastases in BRCA have distinct clinical associations, particularly with extracranial and skull involvement.
  • While overall prognosis is not significantly altered by DMs, subtype differences impact progression to leptomeningeal carcinomatosis.
  • Findings aid in stratifying risk and informing clinical management for BRCA patients with brain metastases.

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