How to distinguish cholesterol polyps from adenomatous polyps in gallbladder?

In B-ultrasound examination, the distinction between cholesterol polyps and adenomatous polyps mainly depends on observing the shape, size, location, echo characteristics and relationship with the gallbladder wall of the polyps. The following is the distinction based on these characteristics:

Cholesterol polyps

Morphology and size : Cholesterol polyps are usually small, mostly around 5 mm, with a smooth surface, and sometimes multiple.

Echo characteristics : In B-ultrasound examination, cholesterol polyps appear as high echoes and have a relatively regular shape.

Location and connection : Cholesterol polyps often protrude into the gallbladder cavity and are connected to the gallbladder wall by a thin pedicle.

Other features : Cholesterol polyps generally have no blood supply, and the gallbladder wall is normal or slightly thicker.

Adenomatous polyps

Morphology and size : Adenomatous polyps are mostly solitary and may be larger in diameter, most of which are larger than 1 cm.

Echo characteristics : In B-ultrasound examination, adenomatous polyps appear as low echo or mixed echo with irregular shape.

Location and connection : Adenomatous polyps are mostly located in the neck and body of the gallbladder, with a few located at the bottom. They are generally connected to the gallbladder wall by a thick pedicle.

Other features : Adenomatous polyps have a certain blood supply, and the gallbladder wall may be slightly thicker. In addition, adenomatous polyps have the potential to become malignant and need to be closely monitored.

Comprehensive distinction points

Multiple and solitary : Cholesterol polyps are mostly multiple, while adenomatous polyps are mostly solitary.

Echo characteristics : Cholesterol polyps usually appear hyperechoic, while adenomatous polyps may appear hypoechoic or mixed echoic.

Shape and size : Cholesterol polyps are regular in shape and small, while adenomatous polyps may be larger and irregular in shape.

Relationship with the gallbladder wall : Cholesterol polyps are connected to the gallbladder wall by a thin pedicle, while adenomatous polyps are connected by a thicker pedicle.

Please note that the above information is for reference only. In actual clinical applications, the results of B-ultrasound examinations need to be comprehensively analyzed and judged by professional doctors in combination with the patient's clinical symptoms, medical history and other examination results. If you have any doubts or symptoms occur, please seek medical attention in a timely manner and accept the diagnosis and treatment advice of professional doctors.