CT and angiographic features of nine incidentally discovered @entity1358 are reviewed. They were all discovered by CT or US during screening procedures or examinations targeting the liver or pancreas. In our institute, they constituted 56 percent of renal @entity420 whose diameters were 4 cm or less. CT without contrast enhancement detected abnormality in seven of the nine, but two were negative or equivocal. Postcontrast CT delineated all @entity5 as relatively low-density areas, since the normal parenchyma of the kidney showed intense contrast enhancement. We believe that isodense or nearly isodense masses that show relatively low density after contrast are diagnostic of small solid @entity703 . Dynamic study with a bolus injection of contrast medium added information about the vascularity of the @entity5 . Angiography revealed hypervascularity in only four of the @entity5 . The rest were @entity2530 . Four @entity5 that were avascular in the AP arteriographic view were shown to be hypovascular by a tailored oblique view in which adequate obliquity of the angiographic projection was determined by referring to CT, so that the @entity5 would be seen in profile and would not be superimposed on by normal parenchyma or vertebral shadows.

Incidentally discovered XXXX : CT and angiography.

@entity5 :: ('MESH:D009369', 'Disease') :: ['tumors'] @entity703 :: ('MESH:D007680', 'Disease') :: ['renal tumors'] @entity1358 :: ('MESH:D002292', 'Disease') :: ['small renal adenocarcinomas'] @entity420 :: ('MESH:D000230', 'Disease') :: ['adenocarcinomas'] @entity2530 :: ('MESH:D010020', 'Disease') :: ['avascular or hypovascular']
@entity703 :: (MESH:D007680,Disease) :: ['small renal carcinoma']
