PMC5865629_01
CT urogram delayed phase showing right trifid and left bifid collecting systems.
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A CT urogram was performed that revealed a completely trifid collecting system on the right side and a bifid system on the left side (Fig. 1).
Three ureteral orifices seen during cystoscopy on the right side. Arrow A, interpolar moiety; arrow B, upper pole moiety; arrow C, lower pole moiety.
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Upon inspection, with cystoscopy, three separate ureteral orifices (Fig. 2) were seen on the right side.
Retrograde pyelogram showing trifid right-sided collecting system (Type I).
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The right trifid collecting system is well appreciated on retrograde pyelograms (Fig. 3).