Department of Radiology;
Konkuk University Medical Center;
Konkuk University School of Medicine;
120-1 Neungdong-ro;
Gwangjin-gu;
Seoul 05030;
South Korea;
Cholesterol polyp; Gallbladder adenoma; Adenomyomatosis; Cholecystitis; Xathogranulomatous cholecystitis; Gallbladder cancer; Imaging techniques;