Analyses of Exosomes in the Cerebrospinal Fluid for Breast Cancer Patients With Suspicion of Leptomeningeal Metastasis.

Stopped Modification of the care habits. We believe today that we are no longer able to carry out this study as initially described.

Conditions

• Breast Cancer
• Leptomeningeal Metastasis

Interventions

• PROCEDURE: Cerebrospinal fluid and blood sample collection at the initial diagnostic assessment
• PROCEDURE: Cerebrospinal fluid and blood sample collection if conclusions of initial diagnostic assessment are "Lack of evidence" according to EANO-ESMO classification
• PROCEDURE: Cerebrospinal fluid and blood sample collection if conclusions of initial diagnostic assessment are "confirmed", "probable" or "possible", leading to leptomeningeal metastase specific treatment

Sponsor

Centre Oscar Lambret