Cerebrospinal fluid (CSF) is a clear bodily fluid that cushions and protects your brain and spinal cord. A CSF protein test involves taking a fluid sample from your spinal column using a needle. This ...
CSF-ctDNA was detected in 59% of cases and showed high concordance (84%) with tumor mutations. Lower variant allelic frequency in CSF-ctDNA was associated with significantly worse survival outcomes.
Cerebrospinal fluid is the liquid around your brain and spinal cord. If a doctor thinks you have an illness that affects your nervous system, they might take a sample for testing. The fluid is made by ...