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Vol. 26. Issue 3.
Pages 226-230 (January 2002)
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Vol. 26. Issue 3.
Pages 226-230 (January 2002)
Osteosarcoma vesical primario tratado mediante hemicistectomía
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A. Rodríguez Alonso1,a, A. González Blancoa, C. Bonelli Martína, C. Nogueira Carballedo*,a, J.A. García Rego*,a, M. Cachay Ayalaa, J. Lorenzo Francoa, M.A. Cuerpo Péreza, J. Nieto Garcíaa
* Servicio de Anatomía Patológica. Hospital Arquitecto Marcide. El Ferrol. La Coruña
a Servicio de Urología. Servicio de Anatomía Patológica. Hospital Arquitecto Marcide. El Ferrol. La Coruña
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Resumen

El osteosarcoma primario de vejiga es un tumor de extraordinaria rareza, con menos de 30 casos adecuadamente documentados. Desde el punto de vista clínico y radiológico es indistinguible de otros tipos de tumor vesical, ya que aunque las calcificaciones de la pared vesical son frecuentes en el osteosarcoma, existen otras patologías vesicales que también pueden presentar calcificaciones. Para realizar el diagnóstico de osteosarcoma vesical primario es imprescindible descartar la existencia de afectación esquelética. El diagnóstico diferencial debe realizarse fundamentalmente con otros tumores formadores de hueso, como el carcinosarcoma y el carcinoma de células transicionales con metaplasia ósea. El pronóstico del osteosarcoma vesical es ominoso, ya que la mayoría de los pacientes fallecen antes de los 6 meses, independientemente del tratamiento efectuado.

Presentamos un caso de osteosarcoma vesical tratado mediante hemicistectomía derecha, que permanece libre de enfermedad tras un año de seguimiento.

Palabras clave:
Osteosarcoma
Neoplasia vesical
Tratamiento
Abstract

Primary osteosarcoma of the bladder is an extremely rare type of tumour, and less than 30 adequately documented cases have been registered. From a clinical and radiological point of view, it is impossible to distinguish from other types of bladder tumours, since despite the fact that calcification of the bladder wall is common in osteosarcoma, other bladder diseases exist which may also present calcification. Prior to primary bladder osteosarcoma diagnosis, it is vital to first rule out the existence of an skeletal origin. Differential diagnosis must be carried out essentially with other boneforming tumours, such as carcinosarcoma and transitional cell carcinoma with bone metaplasia. Prognosis for bladder osteosarcoma is extremely pessimistic, as the majority of patients do not survive beyond 6 months, regardless of the treatment carried out.

We present a case of bladder osteosarcoma treated by right hemi-cystectomy, which remains disease free after a follow-up period of one year.

Key words:
Osteosarcoma
Bladder neoplasm
Treatment

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