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[Bladder carcinosarcoma: chondrosarcoma plus urothelial carcinoma]
M Medina Pérez1, I Valpuesta Fernández, J Valero Puerta
1Servicio de Urología y Anatomía Patológica, Hospital de la Merced, Osuna, Sevilla, España.
Archivos Espanoles De Urologia
|February 10, 1999
Summary
This case report details a rare bladder carcinosarcoma in an 87-year-old patient presenting with hematuria. Histological analysis confirmed a mixed chondrosarcoma and urothelial sarcoma, supporting the classification of carcinosarcoma.
Area of Science:
- Urology
- Oncology
- Pathology
Background:
- Bladder carcinosarcomas are rare malignant neoplasms.
- This report presents an additional case for clinical and pathological review.
Observation:
- An 87-year-old patient presented with gross hematuria.
- Imaging revealed a bladder tumor; cystoscopy identified a 4 x 3 cm polypoid mass on the posterior wall.
Findings:
- Transurethral resection was performed.
- Histopathology revealed a biphasic tumor with chondrosarcoma and urothelial sarcoma components.
- Immunohistochemistry showed vimentin positivity in sarcomatous elements and keratin positivity in carcinomatous cells.
Implications:
- Confirms bladder carcinosarcoma as a distinct entity.
- Highlights the importance of thorough histological and immunohistochemical analysis for diagnosis.
- Contributes to understanding the pathology of rare bladder tumors.