[Comparative echographic and computed tomographic studies of acute focal bacterial nephritis].

The diagnostic potentialities of ultrasound and computed tomography for the early diagnosis of acute focal bacterial nephritis were studied in 12 patients. The echographic findings in all patients are similar: insular tumor-like zone, unclearly defined from the neighbouring parenchyma, hypo-, hyper- or isoechogenic, without liquefaction and lack of distant amplification. The computed tomographic image of 4 from 5 patients studied is as follows: perihilar defect with wedge-shaped form, hypodense structure, radially striated areas from the cavity system toward the parenchyma after applying of a contrast medium. The conclusion is that an early diagnosis of the acute focal bacterial nephritis could be achieved by ultrasound examination which is of high informativeness, harmless, with no radiation and should be basic diagnostic method for this kind of nephritis. The early diagnosis allows a more precise treatment.