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Pitfalls to avoid: psoas hypertrophy mimicking retroperitoneal fibrosis
Journal of the Canadian Association of Radiologists
|March 1, 1981
Summary
Psoas muscle hypertrophy caused mild obstructive uropathy and medial ureter deviation in a young male athlete. Imaging confirmed this was not retroperitoneal fibrosis, but rather a muscular anomaly.
Area of Science:
- Urology
- Radiology
- Anatomy
Background:
- Obstructive uropathy can present with ureteral deviation, mimicking other retroperitoneal pathologies.
- Psoas muscle hypertrophy is a known condition, but its association with uropathy is less common.
Observation:
- A case study of an athletic young black male presented with symptoms suggestive of obstructive uropathy.
- Imaging revealed mild obstructive uropathy and medial deviation of the ureters.
Findings:
- Computed tomography and ultrasonography ruled out retroperitoneal fibrosis.
- The observed uropathy and ureteral deviation were definitively attributed to psoas muscle hypertrophy.
Implications:
- Highlights the importance of considering musculoskeletal causes for uropathy.
- Psoas muscle hypertrophy should be included in the differential diagnosis for ureteral deviation.
- Accurate diagnosis via advanced imaging prevents unnecessary interventions for conditions like retroperitoneal fibrosis.
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