 Warm greetings to all the viewers. My name is Mohan Mathur. I'm an Associate Professor of Radiology and Biomedical Imaging at the Yale School of Medicine. I work in the Division of Body Imaging, and this master course that we're going to go through will cover a variety of pathology involving the gallbladder, and it's going to be focused on that the MR imaging appearance of many of these findings. Now the cases that we're going to go through can be organized and we're going to, I'm going to organize them to three broad groups. The first will just be normal imaging appearance of the gallbladder, gallstones, gallbladder sludge, etc. This will also include some common and some uncommon gallbladder variants. The second group of cases will cover inflammatory conditions of the gallbladder, including some of the complications that you can see associated with these conditions. And last but not least, we're going to cover gallbladder masses. Some of these masses will be benign, some of these masses will be belignant. All of the cases I show you today, I hope, will be interesting and informative to the georadiology education. So with that, let's dive deep into normal anatomic features of the gallbladder.