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Oncología (Barcelona)

versão impressa ISSN 0378-4835


CONDE, V. et al. Kidney collition tumor: an unusual case of renal cell carcinoma and renal leiomyosarcoma. Oncología (Barc.) [online]. 2006, vol.29, n.4, pp.36-41. ISSN 0378-4835.

PURPOSE: A collition tumor is characterized by the coexistence of two histologically different neoplasms that are independent of any interface mixing. Kidney collition tumors are extremely rare. MATERIAL AND METHODS: We present the case of a patient diagnosed of a kidney collition tumor consisting of renal cell carcinoma and renal leiomyosarcoma. RESULTS: The clinical management of this patient was complex due to the limited experience in the treatment of his kind of tumors, and to the poor results obtained with systemic treatment of the two types of tumors involved. CONCLUSIONS: There are very few communications about collition tumors of the kidney, and we consider interesting to repot the existence of these tumors as well as their clinical complexity.

Palavras-chave : Collition tumor; Kidney; Renal cell carcinoma; Renal leiomyosarcoma.

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