Note the filling defect
(1) visible in both images.
Mucosal granules, mucosal or intramural filling defects
and thickened folds can be seen in barium enema studies.
This was noted as a nodular filling defect
on the surface of the ovary delineated by the intraperitoneal spill (Figure 7).
Yi and collegues (7) have reported that CT findings favor the diagnosis of pulmonary artery sarcoma when they include low-attenuation filling defect
occupying the entire luminal diameter of the proximal or main pulmonary artery, usually accompanied by expansion of the involved arteries or extraluminal tumor extension (1-3,7).
The filling defect
had a lower attenuation down to -6 Housefield units, more indicative of fat, compared to that expected for blood products of around 40-50 Hounsfield units.
Pulmonary angiography showed a filling defect
in left upper lobe PA and right upper lobe PA.
Contrast-enhanced T1-weighted Vibe sequence coronal MRI shows contrast filling defect
within the IVC due to ruptured liver hydatid cyst (b) (arrow).
The retrograde pyelogram did not demonstrate any filling defects
or any evidence of the hydroureter (Figure 2).
Only a very faint filling defect
was found in the excretory phase.
A double-contrast barium enema was arranged on the following day, revealed a segmental filling defect
about 5 cm in length with mucosal destruction and stenosis over the rectosigmoid colon [Figure 1]b.
The patient underwent an endoscopic retrograde cholangiography (ERC) which showed a large filling defect
[Figure 1] in the common bile duct, consistent with a large biliary stone.
CT angiogram of the chest showed a linear filling defect
limited to the ascending aorta above the aortic valve annulus (Figure 4).
Fluoroscopic studies may outline a large mottled intraluminal filling defect
in the stomach and duodenum that may extend into the small bowel with barium often trapped within the interstices.
Excretory urography showed an irregular filling defect
in the upper pole calyx.
A percutaneous pancreaticogram was done which revealed a round filling defect
of 15 mm occupying the main pancreatic duct in the region of the head of pancreas raising the possibility of a mucinous ductal neoplasm.