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Updated: May 22, 2026

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A Murine Model of Irreversible and Reversible Unilateral Ureteric Obstruction
Published on: December 20, 2014
Ureteric obstruction: A unique case
1Department of Urology, Malabar Hospitals, Palakkad, Kerala, India.
Summary
This case report details a rare instance of an appendiceal carcinoid tumor directly involving the ureter, causing obstruction. This finding is significant as it
Area of Science:
- Gastroenterology and Urology
- Oncology
- Surgical Pathology
Background:
- Appendiceal carcinoid tumors are rare, typically confined to the gastrointestinal tract.
- Extramural involvement is documented, but direct ureteral invasion is unprecedented.
Observation:
- A 23-year-old female presented with right flank pain and fever.
- Imaging revealed right-sided hydroureteronephrosis secondary to ureteral compression by a mass.
Findings:
- The mass was identified as an appendiceal carcinoid tumor.
- Histopathological analysis confirmed direct ureteral involvement by the carcinoid tumor.
Implications:
- This case expands the known spectrum of appendiceal carcinoid tumor behavior.
- Highlights the importance of considering rare differential diagnoses in urological obstruction.
- Suggests potential for multidisciplinary management involving surgical and oncological expertise.
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