PMC7991281_01
a Renal transplant sonogram showing allograft hydronephrosis. b Sonogram of the ureter showing dilated transplant ureter.
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F1
Sonogram showed moderate to severe allograft HUN without calculus, normal resistive indices, and absence of significant post-void residual (Fig. 1a, b).
Voiding cystourethrogram showing no vesicoureteral reflux.
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F2
Voiding cystourethrography showed no evidence of VUR (Fig. 2).
a MAG-3 nuclear renal scan showing the pre-diuretic function images. There is no significant spontaneous drainage of the radiotracer to the bladder. b MAG-3 nuclear renal scan showing the pre-diuretic function curve. There is no significant spontaneous drainage of the radiotracer. The x axis is labelled as radiotracer activity in counts/s, and the y axis is labelled as time in minutes following the infusion of the radiotracer (30 min pre-diuretic renogram). c MAG-3 nuclear renal scan showing the post-diuretic function images. There is a prompt response to the diuretic with significant drainage of the radiotracer to the bladder. d MAG-3 nuclear renal scan showing the post-diuretic function curve. There is a prompt response to the diuretic with significant drainage of the radiotracer. The x axis is labelled as radiotracer activity in counts/s, and the y axis is labelled as time in minutes following the administration of the diuretic (30 min post-diuretic imaging).
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F3
A diuretic nuclear renogram with urinary catheter in situ showed a mildly decreased allograft perfusion, no significant spontaneous drainage of MAG-3 but prompt response to gravity and diuretic with post-diuretic half time of 12 min (Fig. 3a-d).
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