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Renal pseudoenlargement secondary to retroperitoneal liposarcoma
G J Whitman1, S A Wegryn, G K Lammert
1Department of Radiology, Cleveland Clinic Foundation, OH 44195.
Cleveland Clinic Journal of Medicine
|November 1, 1992
Summary
A large retroperitoneal liposarcoma mimicked kidney enlargement on an intravenous urogram. Subsequent computed tomography revealed the kidney
Area of Science:
- Radiology
- Oncology
- Nephrology
Background:
- Retroperitoneal masses can present diagnostic challenges.
- Accurate kidney size assessment is crucial for diagnosis and treatment planning.
Observation:
- An intravenous urogram suggested right renal pseudoenlargement.
- A computed tomography scan demonstrated a normal-sized right kidney.
Findings:
- The apparent kidney enlargement was caused by anterior displacement from a large retroperitoneal liposarcoma.
- This displacement created a magnification effect on the urogram.
Implications:
- Highlights the importance of cross-sectional imaging like CT for accurate anatomical assessment.
- Underscores the need to consider extrinsic factors when interpreting renal imaging.
- Crucial for differentiating true renal pathology from displacement artifacts.