Surgery for isolated lung metastasis in two patients with bladder cancer

Two patients presented with an isolated pulmonary lesion on routine x-ray of the thorax almost 2 years after treatment of bladder cancer. Needle biopsy showed squamous cell carcinoma in the first patient but did not classify the lesion in the second patient. No evidence of extrapulmonary disease was found. Lobectomy was performed. Pathologic examination showed similar histologic and immunohistochemical characteristics as the primary bladder carcinoma. Postoperatively, it was decided not to give chemotherapy. One patient died 6 months postoperatively and 1 patient was alive 27 months after metastasectomy without evidence of disease.