title: [Acute focal bacterial nephritis].
abstract: Acute focal bacterial nephritis is a very rare type of infective nephritis. It is characterised by groups of abscesses of 1 to 5 mm. situated in the renal cortex with pus tracking to the papillae. Urography is normal or suggests a non-specific enlargement. On sonography, non-homogeneous foci with reduced echogenicity are observed. Unenhanced CT shows indefinite lesions of reduced density, which do not enhance as much as the surrounding parenchyma after contrast injection. On angiography these areas appear as hypovascular lesions. The disease must be differentiated from a malignant renal tumour and from an acute renal abscess. The clinical findings and the results of sonographic and radiological observations on five patients with acute focal bacterial nephritis are described.
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D000792:Angiography; D001424:Bacterial Infections / Q000175:diagnosis* / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008297:Male; D009393:Nephritis / Q000175:diagnosis* / Q000000981:diagnostic imaging; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000175:diagnosis / Q000000981:diagnostic imaging; D011263:Pregnancy Trimester, Third; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography
vernacular_title: Die akute fokale bakterielle Nephritis (AFBN).