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Unusual imaging presentations in renal transitional cell carcinoma
1Department of Diagnostic Radiology, Chang Gung Memorial Hospital, Kaohsiung, Chang Gung College of Medicine and Technology, Kaohsiung Hsien, Taiwan.
Acta Radiologica (Stockholm, Sweden : 1987)
|December 12, 1997
Summary
Unusual imaging findings in renal transitional cell carcinoma (TCC) can mimic other conditions. Recognizing these deceptive presentations is key to timely diagnosis and treatment of TCC.
Area of Science:
- Radiology
- Urologic Oncology
- Pathology
Background:
- Renal transitional cell carcinoma (TCC) is a malignancy arising from the urothelium of the renal pelvis and calyces.
- Typical imaging findings of TCC include filling defects, hydronephrosis, and wall thickening.
- Atypical presentations can lead to diagnostic challenges and delays.
Purpose of the Study:
- To document and categorize unusual imaging manifestations of renal TCC.
- To highlight the diversity of TCC's appearance on imaging studies.
- To improve the recognition of deceptive TCC imaging findings.
Main Methods:
- Retrospective review of imaging studies from 140 pathologically confirmed cases of renal TCC.
- Focus on identifying and classifying atypical or unusual imaging presentations.
- Analysis of imaging findings in relation to pathological diagnoses.
Main Results:
- Unusual imaging presentations were identified in 20 cases (14.3%) of renal TCC.
- These atypical findings were categorized into five groups: perirenal abscesses/hematomas (6 cases), parenchymal masses (5 cases), hydronephrotic wall thickening (4 cases), "tuberculoid" pyelograms (3 cases), and tumors with massive necrosis (2 cases).
Conclusions:
- Renal TCC can present with deceptive and varied imaging features.
- Awareness of these unusual presentations is crucial for accurate and prompt diagnosis.
- Early recognition of atypical TCC imaging can prevent diagnostic delays and improve patient outcomes.