| APSD | aorticopulmonary septal defect |
|---|---|
| AREDYLD | acrorenal field defect, ectodermal dysplasia, lipoatrophic diabetes [syndrome] |
| AVSD | atrioventricular septal defect |
| COVESDEM | costovertebral segmentation defect with mesomelia [syndrome] |
| CSD | carotid sinus denervation; cat scratch disease; combined system disease; conditionally streptomycin ... |
| filling defect | 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. (05 Mar 2000) |
|---|---|
| filling defect in renal collecting system | <radiology> Common causes: transitional cell carcinoma, blood clot, lucent calculus (urate) less common causes: fungus ball, sloughed papilla, fibroepithelial polyp, invasion by hypernephroma, malakoplakia, vessel impression, metastases (12 Dec 1998) |
| lambdoid suture defect | <radiology> Well-defined lucent lesion, classically unilateral, associated with neurofibromatosis (12 Dec 1998) |
| luteal phase defect | Inadequate function of the corpus luteum that may prevent a fertilized egg from implanting in the uterus or may lead to early pregnancy loss. (09 Oct 1997) |