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Pyelosinus extravasation and urinoma associated with malignancy. Computed tomography demonstration
B S Rose1, R Ragosin, J L LaRosa
1Department of Radiology, Ohio State University Hospitals, Columbus.
Urology
|April 1, 1988
Summary
Malignant abdominal tumors can cause urinary tract obstruction and urine leakage (pyelosinus extravasation), sometimes forming urinomas. These findings suggest a potential link between retroperitoneal/pelvic cancers and urine collection abnormalities.
Area of Science:
- Urology
- Radiology
- Oncology
Background:
- Abdominal malignancies can lead to complex urinary tract complications.
- Urinary tract obstruction and urine extravasation are potential sequelae of pelvic and retroperitoneal tumors.
Observation:
- Three cases of abdominal malignancy presented with urinary tract obstruction and pyelosinus extravasation.
- Two of these cases also exhibited urinoma formation.
- Computed tomography (CT) revealed specific patterns of urine distribution within the perirenal space.
Findings:
- Pyelosinus extravasation, the leakage of urine into the renal sinus, was observed in conjunction with malignancy.
- Urinoma formation, a collection of extravasated urine, occurred in a significant subset of these cases.
- CT imaging is crucial for visualizing the extent and pattern of urine extravasation and urinoma.
Implications:
- The findings suggest that pyelosinus extravasation and urinoma formation may be underrecognized complications of retroperitoneal and pelvic cancers.
- Increased awareness among clinicians and radiologists is warranted for prompt diagnosis and management.
- Further studies could elucidate the precise mechanisms and incidence of these complications in oncologic patients.