filling defect


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defect

 [de´fekt]
an imperfection, failure, or absence.
congenital heart defect see congenital heart defect.
aortic septal defect see aortic septal defect.
atrial septal defect see atrial septal defect.
filling defect an interruption in the contour of the inner surface of stomach or intestine revealed by radiography, indicating excess tissue or substance on or in the wall of the organ.
neural tube defect see neural tube defect.
septal defect a defect in the cardiac septum resulting in an abnormal communication between opposite chambers of the heart. Common types are aortic septal defect, atrial septal defect, and ventricular septal defect. See also congenital heart defect.

fill·ing de·fect

displacement of contrast medium by a space-occupying lesion in a radiographic study of a contrast-filled hollow viscus, such as a polyp on a barium enema; also applied to defects in the otherwise uniform distribution of radionuclide in an organ, such as a metastasis in the liver on a 99mTc-sulfur colloid scan.

filling defect

An imaging term of art referring to a reduction in filling of a focal, typically rounded hollow viscus (e.g., urinary bladder, gallbladder, colon) by radiocontrast due the presence of a mass that projects into the lumen.

filling defect

Imaging A displacement of radiocontrast by a bulky lesion–eg a polyp of the stomach or colon, which often corresponds to a space-occupying mass in a hollow organ. See Defect.

fill·ing de·fect

(fil'ing dē'fekt)
Displacement of contrast medium by a space-occupying lesion in a radiographic study of a contrast-filled hollow viscus, such as a polyp on a barium enema; also applied to defects in the otherwise uniform distribution of radionuclide in an organ, such as a metastasis in the liver on a 99mTc-sulfur colloid scan.
References in periodicals archive ?
(B) Right standing fluoroscopic images after administration of iohexol, which demonstrate proventricular dilatation and multiple filling defects (asterisks).
Spectrum of uterine (n=25), fallopian tube (n=48) and peritoneal (n=25) abnormalities on 3D-MDCT-HSG Uterine findings Number of patients Percentage Endometrial cavity Abnormal shape 7 28% Small spindle shaped cavity 2 8% Two separate uterine cavities 2 8% Smooth indentation in the fundal region 3 12% Abnormal size 5 20% Large uterine cavity 2 8% Small uterine cavity 3 12% Filling defect 4 16% Irregular outline 3 12% Abnormal External contour 2 8% Enlarged uterus 1 4% Extravasation of contrast into myometrium 1 4% Tubal Findings No.
Caption: Figure 4: Contrast-enhanced CT scan, axial image, arterial phase shows intraluminal subtotal filling defect due to a thrombosis of a branch of the triple renal artery (arrows) from the origin up to its most peripheral ramifications.
There are filling defect in the left internal jugular vein (a) and subclavian vein (b), with the lumen filled with dense soft tissue (arrow).
Caption: Figure 3: Postcontrast axial FSPGR sequence demonstrating filling defect within the left sigmoid sinus and proximal jugular vein (red arrows).
MR cholangiogram may show intraductal worms as a linear low-intensity filling defect in the bile ducts.
An initial computed tomography (CT) scan and Doppler ultrasonography revealed an intravascular filling defect in the celiac trunk.
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.
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.