ABSTRACT
The study on 6 cases of pyelonephritis of yellow granulatio at Hue Central Hospital showed a majority of female patients (2/3 of cases) aged 50-60 years old), having classic trilogy of great kidney with calculus and loss of function. Patients were admitted because of lumbago in 2/3 of cases. Urimia, fever and purulent fistula at lumbar side, each 1 case; large kidney touched in 1/2 of cases. Unprepared abdomen X ray image, UIV and ultrasound had found calculus in 1/2 of cases, 1/4 with pyhydrostasis, 3/4 loss of function. Especially color Doppler ultrasound found kidney arterio venous communicatio fistula in 1/2 of cases. CT scanning showed 6/6 cases with fat structure in the kidney parenchyma, 5/6 with large shade kidney, irregular border and heterogenous stain absorption.