What are the imaging differences between gallbladder polyps and gallbladder cancer?
Apr 10, 2023
Source: Cainiu Health
Dr. Jin Zhongkui
Introduction
Gallbladder polyps most commonly occur in the fundus of the gallbladder; gallbladder cancer frequently develops in the fundus and neck of the gallbladder. Ultrasound or CT imaging shows gallbladder polyps as papillary in appearance, whereas gallbladder cancer appears cauliflower-like. Color Doppler ultrasound reveals no significant acoustic shadowing in gallbladder polyps, and no enhancement is observed under contrast agent administration. In contrast, gallbladder cancer presents with uneven thickening of the gallbladder wall, and enhanced CT or MRI scans show明显 tumor enhancement.
Generally, the imaging differences between gallbladder polyps and gallbladder cancer lie in their location, shape, and radiological features. The specific analysis is as follows:
1. Different Locations
Gallbladder polyps commonly occur in the fundus of the gallbladder; gallbladder cancer frequently develops in both the fundus and the neck of the gallbladder.
2. Different Shapes
Ultrasound or CT imaging shows that gallbladder polyps are typically papillary with a slender stalk and a smooth surface, whereas gallbladder cancer usually appears cauliflower-like with a broad base.
3. Different Radiological Features
Color Doppler ultrasound reveals that gallbladder polyps produce no significant acoustic shadowing, have clear boundaries, uniform echogenicity, and show no obvious enhancement after contrast administration. In contrast, gallbladder cancer appears as irregular thickening of the gallbladder wall, increased tissue hardness, and enlarged surrounding lymph nodes. On contrast-enhanced CT or MRI, gallbladder cancer demonstrates明显 tumor enhancement.
Besides imaging differences, the two conditions also differ in clinical symptoms. For example, gallbladder polyps generally do not cause jaundice and mainly present with biliary colic. In contrast, gallbladder cancer often leads to jaundice, accompanied by an upper abdominal mass, bloating, and pain.
