What is a “gallbladder polyp” or “bulging lesion”?

  Gallbladder polyp is the morphological name for a lesion that protrudes or bulges into the lumen of the gallbladder, either spherical or hemispherical, with or without a tip, mostly benign, with cholesterol polyps being the most common clinically.  Most of them are detected by ultrasound during physical examination and are asymptomatic. Individuals have discomfort, pain and nausea in the right upper abdomen, but these are often caused by cholecystitis rather than gallbladder polyps.