Investigation of choice for meningeal carcinomatosis in CNS:
D i.e. Gd-MRI Investigation of choice for meningeal carcinomatosis is Gd enhanced MRIQ (especially for detection of focal spread, bulky disease and metastases from solid tumor). Demonstration of tumor cells/tumor markers in CSF is definitive & often considered gold standard; but has suboptimal/moderate overall sensitivity, and is more sensitive in detecting diffuse leptomeningeal involvement from hematological malignancy
NE-CT
PET
SPECT
Gd-MRI