PMC3914163_01
Abdominal CT scan showing retroperitoneal fibrosis at diagnosis and four months after operation.
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fig1
CT of the abdomen and pelvis was obtained for further evaluation of the obstruction which showed a retroperitoneal lobulated mass measuring 4 cm x 6 cm, producing obstruction to the lower aspects of the bilateral ureters (Figure 1(a)). At four months after operation, the abdominal CT scan showed near resolution of his bilateral hydronephrosis and marked reduction in the size of the retroperitoneal mass (Figure 1(b)).
Patient's BUN and serum Cr levels trend.
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fig2
There was a significant improvement of his renal function evidenced by his decreasing BUN and Cr levels (Figure 2) and good urinary output.