Why should cholecystitis be followed up regularly with CT and B-ultrasound?

Primary gallbladder cancer accounts for 2% to 3% of all gastrointestinal malignancies, and has been increasing in recent years, generally more common in older women. With the widespread application of ultrasonography and spiral CT, the sensitivity and specificity of gallbladder cancer diagnosis have increased significantly, but it is difficult to make a qualitative diagnosis before surgery.

Patients with calculous cholecystitis with mid-epigastric discomfort should be followed up regularly with CT and B-ultrasound, although it is not easy to find small lesions in the gallbladder, but the thickening changes of the gallbladder wall, the mass in the gallbladder, and the spread of adjacent liver lesions and tumors can be directly displayed.The combination of CT and B-ultrasound can be used for early detection, early diagnosis and early treatment of gallbladder cancer, so as to improve the quality of life of gallbladder cancer patients. CT scans of early gallbladder cancer may have no positive findings or only limited cyst wall hypertrophy, while intermediate and late CT shows slightly high-density nodules in the gallbladder cavity and soft tissue shadows in the gallbladder cancer area, and uneven thickening and uneven enhancement of the gallbladder wall.

Direct invasion of adjacent organs, lymphatic and hematogenous metastases. In the early stage of gallbladder cancer, B ultrasound shows thickening of the gallbladder wall or soft tissue bulge or small nodules, and the lesions are generally small, irregular in shape, wide in base, uneven internal echo, and single or combined with stones. In the middle and late stages of the lesion, the irregular cyst wall is thickened > 4 mm (normal gallbladder wall is 1-2 mm), the gallbladder cavity is narrow or occluded, the hepatobile duct is dilated, the gallbladder is solid, and the liver has metastases.