History: 55 year old female with abdominal pain. This is the typical appearance of cholelithiasis (gallstones) on CT. There are multiple types of gallstones, including cholesterol stones (the most common type) and pigment stones. Ultrasound is usually the imaging method of choice to diagnose cholelithiasis, however, they can be seen on CT up to 80% … Continue reading
History: 25 year old female with acute lower abdominal pain, nausea and vomiting. Given the history, this is essentially diagnostic of appendicitis. Take a look again at the image. The appendix has a target appearance, which also aids in the diagnosis. The target appearance is caused by edema within the various layers of the appendix … Continue reading
History: 48 year old man with history of ERCP 3 weeks ago for gallstone pancreatitis presents with severe abdominal pain. This is was post endoscopic retrograde cholangiopancreatography pancreatitis. Note in the picture above, the patient has two calcified gallstones near the neck of the gallbladder. Recently it has been suggested that the terminology describing these cases … Continue reading
History: 60 year old male with chest pain. Typical appearance of a large esophageal hiatal hernia containing stomach gas and liquid contents. There are two main types of esophageal hiatal hernias, sliding and paraesophageal.
History: 75 year old man with abdominal pain, nausea and vomiting. This is the typical appearance of a Rigler Sign, also known as a bas relief sign, which has its origin in sculpture. Look again at the image above. Notice surgical skin staples over the right lower quadrant of the abdomen. The patient was recently … Continue reading
History: 56 year old man with new onset 12 hour history of abdominal pain, nausea and vomiting. This patient went on to endoscopic retrograde cholangiopancreatography (ERCP) and was found to have a large obstructing gallstone in the distal common bile duct. Sphincterotomy was performed, which is a common method of treatment for gallstone pancreatitis and … Continue reading