When Called for a Frozen
•
Patient data
–
age, gender, and length
of symptoms
•
Imaging data
–
Intra vs extra-axial
–
Location in CNS
–
Enhancement pattern
–
Cystic?
•
Micro features
–
Normal or abnormal?
–
Hyper or hypocellular?
–
Inflamm or neoplastic?
–
Diffusely infiltrative?
•
Beware
–
Macrophages on frozen
–
Cystic/malignant gliomas
–
–