Pancreatitis
Mottled calcification in left upper quadrant suggestive of chronic pancreatitis.
Pancreas – Injected Dye
Contrast is injected here into both the bile (to the left of the image) and pancreatic (to the right of the image) ducts. Note that two pancreatic ducts are seen – pancreatic divisum. [Courtesy of Dr. N. Jaffer]
Pancreas – CT
This series of abdominal images is meant to depict the location and appearance of the pancreas by CT. The pancreas is seen just anterior to the aorta, and is fairly centrally placed. The tail is to the left, while the head is to the right. Note the easily visible pancreatic duct seen in the first image of the series. [Courtesy of Dr. N. Jaffer]
Acute Pancreatitis – CT
Abdominal axial CT images showing the pancreas in a patient with acute pancreatitis (left) and in a healthy person with a normal pancreas (right). [Courtesy of Dr. N. Jaffer]
Virtual Colonoscopy
CT colonography (virtual colonoscopy). 3-D endoluminal and 2-D axial CT images shown in parallel for same colonic lesion. Images demonstrate the importance of comparing both images for determining extent of identified lesions. Endoluminal view shows intraluminal part of lesion only, while the axial image demonstrates serosal extension of the lesion allowing for more accurate staging (arrows). [Courtesy of Dr. N. Jaffer]
Ulcerative Colitis – Barium
Represents a stenosed featureless colon.
The differential diagnosis for this includes:
- Long standing (burnt out) ulcerative colitis
- Granulomatous colitis
- Unused bowel (bypassed colon with ileostomy)
- Cathartic bowel (rare – usually right colon, spares rectum)
- Colonic amyloidosis
- Scleroderma
Ulcerative Colitis
Colon appears like a smooth tube due to loss of haustrations; ileocecal valve widely patent with involvment of terminal ileum.
Toxic Megacolon
LLD abdominal radiograph showing extreme dilatation of the transverse colon. [Courtesy Dr. N. Jaffer]
Large Bowel Volvulus
Volvulus – Bird-beak sign
Contrast enhanced study illustrating the “bird-beak” sign associated with cecal volvulus. [Courtesy of Dr. N. Jaffer]
Large Bowel Obstruction – Volvulus
This patient had sigmoid volvulus.
