[Lobar nephritis: echographic diagnosis and follow-up]

Acute lobular nephritis is a focal bacterial infection localizer within the parenchyma of the kidney which may develops with abscess formation; clinical features of such evolution include, fever, chills, flank pain and the hematological findings of infective disease. Echographic pattern includes a law-level echogenic mass with a central hypoechoic or echo-free with sometimes may deform renal profile. Clinical picture and echographic pattern allow the diagnosis of acute lobular nephritis. In the present work we report 3 cases of lobular nephritis on which ultrasound study has permitted the correct diagnosis equally to TC and RM which also was performed. Furthermore the ultrasound imaging is a valid method to appreciate the clinical evolution of patient during therapy.