Conditions that may be mimicking the clinical presentation or imaging appearance of seminal vesicle cystadenomas include 1,6: seminal vesicle cyst adenocarcinoma of the seminal vesicle mixed epithelial and stromal tumors Promoted articles (advertising [radiopaedia.org]

[…] and prognosis The treatment of seminal vesicle cystadenomas includes laparoscopic or open surgical approaches 1, the first having the advantage of decreased rates in postoperative morbidity, shorter hospitalization and faster recovery than the latter [radiopaedia.org]

The treatment was surgical (vesiculectomy) preceded by a suction drainage of the mass. The anatomopatholgic exam of surgical piece has reached to a cystadenoma of the left seminal vesicle. [cgl.org.cn]

[…] restriction DCE (Gd): delayed enhancement of the tumor capsule The radiological report should include a description of the following: location form and extent of the tumor invasive features relation to prostate bladder and sigmoid colon Treatment and prognosis [radiopaedia.org]