[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.