Introduction to Genitourinary Radiology, Part III

In the conclusion of this introductory series, we discuss the basics of computed tomography (CT) urography, bladder and urethral diverticula, and scrotal pathology including varicocele, epididymo-orchitis, and testicular neoplasm.

Topics include:
1) CT urography post-processing techniques: maximum intensity projection (MIP) and 3D volume-rendered (VR) imaging.
2) Appearance of transitional cell carcinoma in the ureters and bladder on excretory phase CT mages.
3) Papillary necrosis.
4) Weigert-Meyer rule for duplicated collecting systems and tips to remember it.
5) Urethral diverticula appearance on magnetic resonance imaging (MRI) and voiding cystourography (VCUG).
6) Scrotal varicocele and the importance of recognizing the implications of right-sided versus left-sided.
7) Acute scrotal pathology: testicular torsion and epididymo-orchitis.
8) Differentiating seminomatous and non-seminomatous testicular neoplasms via ultrasound.

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