Infant with vomiting

Upper GI of pediatric mesenteroaxial gastric volvulus
Lateral image from an upper GI exam (left) shows a fixed indentation on the posterior aspect of the mid-esophagus. AP images from the upper GI exam (right) show the stomach appears to be upside-down with the antrum and pylorus superior to the fundus and proximal body of the stomach. Note how the pylorus of the stomach is located superiorly to the gastroesophageal junction.

The diagnosis was mesenteroaxial gastric volvulus in a patient with a left aortic arch and aberrant right subclavian artery.

Teenager with abdominal pain and a history of cystic fibrosis

CT of a dilated but normal appendix in a patient with cystic fibrosis
Axial CT with contrast of the abdomen (above left) shows an irregular contour to the liver and fatty replacement in the pancreatic head. Axial (below left) and coronal (right) CT show the appendix is dilated to a diameter of 12 mm but there are no inflammatory changes around it.

The diagnosis was a dilated but normal appendix in a patient with cystic fibrosis along with liver cirrhosis due to cystic fibrosis and pancreatic insufficiency due to cystic fibrosis.

Newborn with respiratory distress

Upper GI and small bowel follow through of ileal stenosis
AXR AP (above) shows a distended abdomen with multiple dilated loops of bowel including an asymmetrically dilated loop of bowel in the right upper quadrant. Delayed images from an UGI small bowel follow through exam (below left) shows contrast entering this dilated loop which is in the distal ileum and eventually passing through this dilated loop and filling the appendix (below right).

The diagnosis was ileal stenosis.

School ager with sickle cell disease and abdominal pain

US of gangrenous cholecystitis
Sagittal (left) and transverse (right) US of the gallbladder show the gallbladder to be filled with sludge and debris. The gallbladder wall is thickened and in one area was felt to be discontinuous. There were multiple gall stones present in the common bile duct (not pictured).

The diagnosis was gangrenous cholecystitis due to choledocholithiasis in a patient with sickle cell disease.

Premature newborn with gastrointestinal bleeding after replacement of the nasogastric tube

AXR of nasogastric tube causing gastric perforation
Baseline CXR AP obtained yesterday (left) shows a nasogastric tube coursing through the esophagus and then curving towards the stomach on the left side of the abdomen. AXR AP after nasogastric tube replacement (right) shows a straight course to the newly placed nasogastric tube whose tip projects in the midline at the level of the L3 vertebral body. There is a faint oval lucency in the midline of the upper abdomen at the level of the T10 and T11 vertebral bodies.

The diagnosis was nasogastric tube malfunction in the form of gastric perforation caused by placement of a nasogastric tube resulting in pneumoperitoneum.

Infant with abdominal pain

AXR of CT of pneumatosis intestinalis of the colon
AXR AP (above left) shows extensive curvilinear air throughout the wall of the colon from the cecum to the rectum. There is contrast in the bladder from the contemporaneously performed CT. Axial (above right) and coronal (below) CT with contrast of the abdomen show a large amount of air in the wall of the colon throughout the entire colon.

The diagnosis was pneumatosis intestinalis of the entire colon of unknown etiology.

School ager who recently had their gastrostomy tube replaced and now have abdominal pain with tube feeds

AXR of the tip of the gastrostomy tube in the peritoneal space rather than in the stomach.
AXR AP obtained after the injection of water soluble contrast through the gastrostomy tube shows contrast throughout the peritoneum which is outlining the liver and spleen and pooling in the pelvis. The contrast in the bladder is from a CT exam performed earlier in the day.

The diagnosis was gastrostomy tube malfunction with the tip of the gastrostomy tube in the peritoneal space rather than in the stomach.