Liver Cancer Diagnosis: How Imaging Techniques Detect and Stage Tumors

Medical imaging is pivotal for liver cancer diagnosis, staging, and monitoring:

1. Ultrasound: First-line; detects tumors, assesses size/location, identifies structural abnormalities.
2. CT Scan: Detailed cross-sections; evaluates tumor extent, vascular involvement, spread to nearby organs.
3. MRI: Excellent soft-tissue contrast; detects small lesions, differentiates tumor types.
4. MRCP: Visualizes bile/pancreatic ducts; identifies obstruction causing jaundice.
5. PET Scan / PET-CT: Metabolic activity assessment; distinguishes malignant from benign lesions; valuable for advanced disease.
6. Contrast-enhanced CT/MRI: Improves tumor vs. healthy tissue differentiation.
7. Angiography: Evaluates tumor blood supply and vascular anatomy.
8. Elastography: Measures tissue stiffness; identifies fibrosis, cirrhosis, tumors (cancer is stiffer).

Comprehensive imaging enables accurate diagnosis, staging, treatment planning, and therapy monitoring.