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Preschooler with a central venous catheter that infuses but does not draw back

Radiology case of fibrin sheath
Image from a central line study after the injection of a small amount of contrast (left) shows that the distal portion of the catheter is thicker in diameter than the proximal portion of the catheter. Image obtained after the injection of a small amount of additional contrast (right) shows contrast flowing not from the tip of the catheter but rather contrast flowing from the right side of the catheter just above where the catheter thickening begins in the left image.

The diagnosis was central venous catheter malfunction due to the presence of a fibrin sheath.

Toddler with a right-sided abdominal mass

MRI of Wilms tumor
AXR (above left) shows displacement of the bowel out of the right side of the abdomen. Sagittal US of the right kidney (above right) shows a large right renal mass that spares the upper pole of the right kidney. Coronal T1 MRI with contrast of the abdomen (below left) shows a large mass that is heterogenous in appearance that arises from the lower pole of the right kidney and that is demonstrating a claw sign superiorly. Axial T2 MRI (below right) again shows the heterogenous nature of the mass due to hemorrhage and necrosis.

The diagnosis was Wilms tumor.

Teenager after a motor vehicle accident

CT of ovarian cyst
Axial CT with contrast of the pelvis shows a distended contrast-filled bladder in the center of the image and contrast in the distal left ureter adjacent to the normal left ovary and contrast in the distal right ureter adjacent to the right ovary which contains a round low density lesion in its center. There is also a small amount of physiologic free fluid in the pelvis

The diagnosis was right ovarian cyst.

School ager who just had an old left central venous catheter removed and a new right central venous catheter placed

CXR of retained central venous catheter fragment
CXR AP shows the tip of the new right central venous catheter to be in the superior vena cava. Also seen is a short piece of catheter in the left brachiocephalic vein.

The diagnosis was central venous catheter malfunction with a retained fragment of the removed left central venous catheter in the left brachiocephalic vein.

Newborn with complex congenital heart disease

CT of umbilical venous catheter in normal position
Sagittal CT with contrast of the chest shows the umbilical venous catheter to course through the umbilical vein into the liver to the left portal vein to the ductus venosus to the left hepatic vein to the inferior vena cava with its tip near the junction of inferior vena cava and the right atrium.

The diagnosis was normal position of the umbilical venous catheter with the tip near the junction of the inferior vena cava and the right atrium.

Infant with urinary tract infection

VCUG of an everting ectopic ureterocele
Sagittal US of the right (above left) and left (above right) kidneys shows parenchymal bars of tissue between the upper and lower poles of each kidney. Transverse US of the bladder (middle left) shows a round cystic structure on the right side of the bladder. Sagittal US of the bladder (middle right) shows the right ureter in continuity with the cystic structure within the bladder. AP image of the bladder (below left) obtained at the start of filling the bladder during a voiding cystourethrogram (VCUG) shows a round filling defect in the right base of the bladder. AP image of the bladder (below right) obtained during the voiding phase of the VCUG shows the previously seen filling defect in the base of the bladder has everted out of the bladder and now appears as a contrast filled structure to the right of the bladder.

The diagnosis was bilaterally duplicated kidneys with a right everting ectopic ureterocele.

Newborn after PICC placement

AXR of PICC line tip in spinal canal
AXR lateral (left) shows the tip of a right lower extremity PICC line looping back upon itself and projecting over the spinal canal. AXR AP (right) after reposition of the line shows the tip projecting over the inferior vena cava. The patient also has a large anterior abdominal wall defect containing loops of bowel which is covered by a membranous sac.

The diagnosis was peripherally inserted central venous catheter malfunction with the tip within the spinal canal in a patient with an ompahlocele.

Newborn with a left-sided chest mass on prenatal ultrasound

CXR of congenital diaphragmatic hernia
CXR AP shows complete opacification of the left hemithorax with mediastinal shift to the right and a small right pneumothorax. The arterial ECMO canula tip projects over the aortic arch and the venous ECMO canula tip projects over the right atrium. The nasogastric tube tip projects over the mid-esophagus.

The diagnosis was normal position of the extracorporeal membrane oxygenation catheters in a patient with left congenital diaphragmatic hernia.

Infant with a diaper that is never dry

VCUG of ectopic ureter inserting into the urethra
Sagittal US of the right kidney (above left) is normal while sagittal US of the left kidney (above right) shows a parenchymal bar between the upper and lower pole collecting systems. AP image of the bladder (below left) obtained during filling of the bladder during a voiding cystourethrogram (VCUG) shows right-sided vesicoureteral reflux into a dilated collecting system with the right ureter inserting normally into the base of the bladder. AP image of the bladder (below right) obtained during the voiding phase of the VCUG shows new left-sided grade I vesicoureteral reflux with the left ureter inserting into the urethra.

The diagnosis was a left duplicated kidney with an ectopic insertion of the left ureter into the urethra and right Grade III vesicoureteral reflux.