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Diagnostic Ultrasound - Abdomen and Pelvis

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Dilated Renal <strong>Pelvis</strong><br />

Differential Diagnoses: Kidney<br />

(Left) Longitudinal ultrasound<br />

of the left kidney<br />

demonstrates pelvic <strong>and</strong><br />

calyceal ſt dilatation. (Right)<br />

VCUG evaluation in the same<br />

patient reveals left grade 4<br />

reflux.<br />

Reflux Into Dilated Renal <strong>Pelvis</strong><br />

Reflux Into Dilated Renal <strong>Pelvis</strong><br />

(Left) Longitudinal color<br />

Doppler ultrasound<br />

demonstrates an anechoic<br />

central structure in the left<br />

kidney without flow <br />

distinct from the central sinus<br />

fat st, representing<br />

extrarenal pelvis. (Right) Axial<br />

contrast-enhanced CT<br />

obtained in the same patient<br />

demonstrates left extrarenal<br />

pelvis .<br />

Extrarenal <strong>Pelvis</strong><br />

Extrarenal <strong>Pelvis</strong><br />

(Left) On longitudinal<br />

ultrasound, note large<br />

anechoic structure in the<br />

upper pole <strong>and</strong> interpolar<br />

region . (Right) Coronal<br />

contrast-enhanced CT in the<br />

same patient reveals a<br />

discrete cyst in the upper pole<br />

of the left kidney <br />

approaching the pelvis<br />

representing parapelvic cyst.<br />

Parapelvic Cyst<br />

Parapelvic Cyst<br />

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