Percutaneous drainage of pseudocyst

(A) Axial noncontrast CT scan of the upper abdomen demonstrates a pseudocyst in a patient with pancreatitis.
(B) Axial noncontrast CT scan of the upper abdomen demonstrates a pigtail catheter within the infected pseudocyst.
(C) Plain x-ray demonstrates the pigtail catheter in the left upper quadrant of the abdomen. Note the presence of an IVC filter just to the right of the spine.