Computed tomographic features of renal tuberculosis.
Computed tomograms (CT) in twenty cases of renal tuberculosis (TB) were reviewed in comparison with intravenous urograms. CT findings were calyectasis, low parenchymal density, parenchymal retraction, and calcification. The main CT feature of renal TB was the simultaneous appearance of these findings in combination. Three of these findings were seen in two-thirds of the cases in the present series. Total renal volume was grossly normal in 10 of 24 affected kidneys and decreased in only seven. Global enlargement of the affected kidney occurred when calyceal dilatation surpassed parenchymal retraction. In our series, affected kidneys tended not to be small in size when renal TB was active. Non-functioning kidneys depicted by intravenous urography were successfully evaluated by CT.
D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed; D014398:Tuberculosis, Renal / Q000000981:diagnostic imaging*