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Inicio Actas Urológicas Españolas Metástasis en partes blandas por un carcinoma micropapilar de vejiga
Journal Information
Vol. 31. Issue 7.
Pages 788-791 (January 2007)
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Vol. 31. Issue 7.
Pages 788-791 (January 2007)
Metástasis en partes blandas por un carcinoma micropapilar de vejiga
Soft tissue metastases by micropapillary bladder carcinoma. metastatic disease
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1853
P. San Miguel Fraile1
Corresponding author
psanmiguel@posiva.es

Correspondencia autora: Dra P. San Miguel Fraile Servicio de Anatomía Patológica. Hospital POVISA Salamanca, 5 - 36211 Vigo (Pontevedra)
, I. Antón Badiola, J.A. Ortiz Rey, B. Iglesias Rodríguez
Servicio de Anatomía Patológica
G. Fernández Fernández*, E. Zungri Telo**
* Servicio de Radiología
** Servicio de Urología. Hospital POVISA. Vigo. Pontevedra
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Resumen

El carcinoma micropapilar es una variante infrecuente de carcinoma vesical (incidencia del 0.7%) con comportamiento clínico agresivo. Histológicamente está constituido por nidos pequeños de células uroteliales dispuestas en lagunas que simulan invasión vascular y se suelen asociar a estadios clínicos avanzados y alto grado histológico. Estos tumores generalmente se asocian a otras variantes histológicas de carcinoma transicional. Los tumores de vejiga suelen metastatizar a ganglios linfáticos, pulmón, hueso e hígado, pero son excepcionales las metástasis a partes blandas. Presentamos el caso de un varón de 77 años que presentó una masa metástasica en partes blandas de pared abdominal a los 6 años de realizarle resección de un carcinoma transicional variante micropapilar de vejiga.

Palabras clave:
Carcinoma micropapilar
carcinoma transicional
metástasis
partes blandas
Abstract

Micropapillary transitional cell carcinoma is a rare (incidence of 0.7%) and highly aggressive variant of bladder carcinoma. Morphologically, it is characterized by small tight clusters of neoplastic cell floating in clear spaces resembling lymphatic channels. Its usual presentation is like a high grade and stage carcinoma and most often is associated with a variable component of conventional carcinoma or other variants. The usual sites of bladder cancer metastases are the lymph nodes, lungs, bone and liver. Soft tissues metastases from transitional cell carcinoma of the bladder occur infrequently. We report the cases of a 77-year-old man presenting with an abdominal soft tissue mass a six years after local excision of a micropapillary bladder carcinoma.

Key words:
Micropapillary carcinoma
transitional carcinoma
metástasis
soft tissues

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