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Benign cecal villous adenoma presenting as a bladder mass
G A Wells1, J E Lichtenstein, J S Moulton
1Department of Radiology, University of Cincinnati Hospitals, Ohio.
Gastrointestinal Radiology
|January 1, 1989
Summary
A benign cecal villous adenoma mimicked aggressive cancer by growing into the bladder via a diseased appendix. This case highlights unusual tumor spread pathways for non-malignant gastrointestinal neoplasms.
Area of Science:
- Gastroenterology
- Oncology
- Pathology
Background:
- Neoplastic involvement of contiguous organs typically indicates aggressive malignant behavior.
- Benign neoplasms rarely demonstrate invasion into adjacent structures.
Observation:
- A patient presented with a bladder mass.
- The mass was diagnosed as a benign villous adenoma originating in the cecum.
Findings:
- The tumor appeared to have extended into the bladder.
- A proposed mechanism involves tumor growth through a diseased appendix into an adjacent organ.
Implications:
- This case challenges the assumption that contiguous organ involvement always signifies malignancy.
- Understanding rare growth patterns is crucial for accurate diagnosis and treatment planning of gastrointestinal tumors.