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Updated: Aug 1, 2026

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An Orthotopic Bladder Tumor Model and the Evaluation of Intravesical saRNA Treatment
Published on: July 28, 2012
[Signet-ring cell neoplasm. Unusual histologic variety as primary bladder tumor]
C Varo Solís1, J M Báez Perea, S Garrido Insúa
1Departamento de Cirugía, Servicio de Urología, Hospital Clínico Universitario Puerto Real, Cádiz.
Actas Urologicas Espanolas
|July 2, 2002
Summary
This case study details a rare primary signet-ring cell adenocarcinoma of the urinary bladder, presenting with gross hematuria and advanced invasion. Treatment involved partial cystectomy and chemotherapy, with a review of bladder origin and histopathology.
Area of Science:
- Urology
- Oncology
- Pathology
Background:
- Signet-ring cell adenocarcinoma is an exceptionally rare malignancy.
- Primary bladder tumors of this type are exceedingly uncommon.
- Understanding the origin and characteristics is crucial for diagnosis.
Observation:
- The patient presented with gross hematuria, a common clinical sign.
- Advanced tumor invasion into the perivesical fat at the bladder dome was observed.
- Histopathological analysis confirmed the signet-ring cell subtype.
Findings:
- The tumor was diagnosed as primary signet-ring cell adenocarcinoma of the urinary bladder.
- The patient's advanced presentation included significant local invasion.
- Successful treatment involved partial cystectomy and chemotherapy.
Implications:
- This case highlights the importance of considering rare bladder tumors in differential diagnoses.
- Effective management strategies for advanced signet-ring cell adenocarcinoma require multimodal approaches.
- Further research into the histopathology and bladder origin of these rare tumors is warranted.

