Complicated congenital seminal vesicle cyst with unilateral renal agenesis: A rare case report

A 16-year-old male patient presented to the pediatric surgery outpatient clinic with a complaint of abdominal pain persisting for approximately two weeks. Laboratory tests revealed a mild elevation in liver enzymes ALT and AST (80 mg/dL and 85 mg/dL, respectively). The viral hepatitis panel and hydatid cyst serology were negative. Abdominal ultrasonography showed the absence of the right kidney and the presence of a dense cystic mass in the posterior of the bladder. Abdominal tomography confirmed right kidney agenesis and identified a 7.5x7.5x10 cm cystic mass extending from the posterior of the bladder to the central zone of the prostate. The patient, with persistent fever (38.4 °C) and worsening abdominal pain, underwent surgery. The complicated seminal vesicle cyst located in the posterior of the bladder was opened laparoscopically. After the cyst was opened, a significant amount of cystic fluid, believed to be purulent ejaculate, was aspirated, and then the cystic mass was completely removed. The patient was discharged on the third postoperative day. A month later, liver enzymes returned to normal.