[Tumor-to-tumor metastasis in a renal carcinoma: A rare and surprising event].
Tumor-to-tumor metastasis is a very rare event. We report three cases of tumor metastasizing in a clear cell renal cell carcinoma: two breast carcinomas and a sigmoid carcinoma. So we objectified a prevalence of 1.5% of renal tumors in our series. It's a rare situation but to be considered in daily practice because it changes oncological management offered to the patient. According to the literature, clear cell renal cell carcinoma is the most common tumor recipient of metastasis. Several physiopathological mechanisms can explain this phenomenon, but many of them are still unknown. A better understanding of this phenomenon makes it possible to improve the diagnosis and thus the management of patients with several cancers.
Service de chirurgie urologique, centre hospitalier Victor-Dupouy, 69, rue du Lieutenant-Colonel-Prudhon, 95100 Argenteuil, France. Electronic address: tchanu@gmail.com.
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Chanu
Service de chirurgie urologique, centre hospitalier Victor-Dupouy, 69, rue du Lieutenant-Colonel-Prudhon, 95100 Argenteuil, France.
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Pavel
Service d'anatomie et de cytologie pathologiques, hôpital Victor-Dupouy, 95100 Argenteuil, France.
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Saint-Frison
Service d'oncologie endocrinienne, institut Gustave-Roussy, 114, rue Edouard-Vaillant, 94800 Villejuif, France.
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Hescot
Service de chirurgie urologique, centre hospitalier Victor-Dupouy, 69, rue du Lieutenant-Colonel-Prudhon, 95100 Argenteuil, France.
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Oro
D000230:Adenocarcinoma / Q000556:secondary; D000368:Aged; D001943:Breast Neoplasms / Q000473:pathology*; D002292:Carcinoma, Renal Cell / Q000473:pathology / Q000556:secondary*; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000473:pathology; D008875:Middle Aged; D012811:Sigmoid Neoplasms / Q000473:pathology*
Carcinome rénal à cellules claires; Clear cell renal carcinoma; Metastasis; Métastase; Tumeur dans une autre tumeur; Tumor-to-tumor metastasis