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Two synchronous primary tumors of the ovary and kidney: a case report.

Multiple malignancies in the same patient account for 1.84% to 3.9% of all cancers. However, multiple synchronous primary tumors in the same patient are extremely rare. Most synchronous double primary cancers are seen in both the genitourinary and gastrointestinal tracts. Synchronous double primary tumors involving kidney and ovary have been reported once in the Japanese literature; however, there are no reported cases in the English literature. This 66-year-old woman underwent radical nephrectomy for her renal cancer and optimal tumor-reductive surgery for her ovarian cancer. She was started on carboplatin and cyclophosphamide therapy for her residual ovarian cancer. On follow-up after 8 months, the patient is alive and well with no evidence of disease. In this report we present the first case in the English language literature of synchronous primary cancers in the right ovary and right kidney.