COMMON INTRA-AXIAL NEOPLASMS
KELLY K. KOELLER



Summary:
• Imaging reflects histology
- More cellular tumors
• Hyperdense on non-contrast CT
• All astrocytomas lack a capsule
- Infiltrate into surrounding brain
- Radiographically impossible to identify the tumor margin
• Lower-grade neoplasms
- Little or no edema
- May or may not enhance
• Higher grade neoplasms
- More edema
- More heterogeneity
• Necrosis, hemorrhage
- More enhancement

ARTIGO COMPLETO (PDF)