Unusual presentation of chronic ureteral obstruction

Area of Science:

• Urology
• Oncology
• Radiology

Background:

• Endometrial malignancy treatment can lead to long-term complications.
• Chronic ureteral obstruction is a potential sequela of pelvic radiotherapy and surgery.

Observation:

• A patient presented with lower back pain one year post-treatment for endometrial cancer.
• Imaging revealed a large retrohepatic mass, initially misdiagnosed.

Findings:

• Urological evaluation diagnosed a right subcapsular renal urinoma with spontaneous renal parenchymal rupture.
• This urinoma was the cause of the chronic unilateral ureteral obstruction.

Implications:

• This case highlights the importance of considering urinoma in post-treatment pelvic malignancy patients with obstructive uropathy.
• Understanding the pathogenesis of subcapsular renal urinoma is crucial for accurate diagnosis and management.
• Timely urological intervention is necessary to manage complications of ureteral obstruction.