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.

defect

an imperfection, failure or absence.

filling defect
an interruption in the contour of the inner surface of viscus revealed by contrast radiography, indicating excess tissue or substance on or in the wall of the organ, foreign body or other space-occupying lesions.
negative defect
in neurology, a movement that cannot be performed, such as in paresis or paralysis.
positive defect
in neurology, an involuntary movement, such as tremors, abnormal posture or seizures.
septal defect
a defect in the cardiac septum resulting in an abnormal communication between opposite chambers of the heart. See also aortic septal defect, atrial septal defect and ventricular septal defect.
References in periodicals archive ?
These findings may be absent in hepatobiliary infection, for which ultrasound is the diagnostic modality of choice, enabling visualization of the parasite within the biliary tree as a tubular echogenic filling defect typically with a hypoechoic centre [4].
If color flow does not completely fill the inside of the shunt, a filling defect or thrombus may be suspected.
Caption: Figure 3: Color Doppler study showing IJV thrombus seen as filling defect.
b) Retrograde urethrogram showing a filling defect in the bulbar urethra (arrow) consistent with syringocele.
There was no filling defect identified this time with a normal distal ureter and renal contour on retrograde pyelogram of the right ureteric orifice.
Computed tomographic (CT) scan of the chest with contrast (Figure 1) revealed a filling defect measuring 1.
Chronic thromboembolic disease is confirmed by identifying an appropriate filling defect pattern in the pulmonary arteries (eg, webs, bands, eccentric thrombus) with or without pulmonary hypertension, collateral systemic supply, parenchymal scarring from prior infarction, mosaic attenuation, and bronchial dilation.
Venous phase axial images through the lower chest demonstrated a filling defect in the coronary sinus (Fig.
Radiographic examinations like barium studies can detect the polyps as an intraluminal filling defect which may be pedunculated or sessile.
This showed a 2cm filling defect in the dilated lower end of the common bile duct, suggestive of an impacted stone.
Subsequent ERCP showed a possible filling defect in the common bile duct treated with sphincterotomy and balloon sweeping of the common bile duct.