Editing Seminal Vesicles and Ejaculatory Ducts (section)

== Radiology ==

* '''Seminal vesicles'''
** '''Transrectal ultrasonography'''
*** '''Appear hypoechoic, compared to the prostate,''' and are crescent-shaped, paired, and symmetrical.
*** '''AP diameter > 1.5cm is suggestive of ejaculatory duct obstruction, and may be the cause of low-volume azoospermia'''
*** '''A cystic SV mass is presumptively benign, whereas a solid lesion has a very small probability of being malignant, especially if the patient has a primary neoplasm elsewhere'''
**** '''Schistosomiasis should be considered when making a differential diagnosis in patients who live in areas where infestation is endemic and have a solid SV mass'''
*** '''An absent SV is associated with a 79% risk of ipsilateral renal agenesis'''
*** CT and MRI can also be used to image the seminal vesicles