Synchronous primary triple carcinoma of thyroid and kidney accompanied by solitary fibrous tumor of the kidney: a unique case report.

Thyroid cancers coexisted with kidney cancer in a patient is an unusual event. Here, we described a case of 35-year-old woman with synchronous occurrence of primary papillary carcinoma and follicular carcinoma of the thyroid, accompanied by renal cell carcinoma and solitary fibrous tumor of the kidney, which has not been reported in literature to our best knowledge. Its clinical and pathological features, as well as the possible pathogenic factors were discussed.