Resumen

GARCIA GARCIA, F. et al. Giant osteoclast type cell carcinoma of the urinary bladder. A case with unusual presentation: Review of the literature. Actas Urol Esp [online]. 2003, vol.27, n.4, pp.317-320. ISSN 0210-4806.

We report a case of neoplasm of the urinary bladder with pseudosarcomatous stromal differentiation. Heterologous carcinosarcomas are extremly rare malignant neoplasms (seventy-eight cases have been previonsly described). This is a case of carcinoma containing numerous osteoclast type giant cells that stained for vinmentin and acid phosphatose and were negative for cytokeratin and lysozyme.

Palabras clave : Heterologous carcinosarcoma; Sarcomatous stromal differentiation; Osteoclast type giant cells.

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