[The third primary-the second metachronous lung cancer in the same patient]

Having more than one lung carcinoma in an organism is called as multiple primary lung carcinoma. The probability of having a second primary lung carcinoma in the same patient at the different times is very rare.Third primary lung carcinoma has not been reported in literature before. A sychronous mass was determined on a 67 years old man about eight years ago. The mass was localized on the left upper lobe and it's histologic type was squamous cell carcinoma/adenosquamous cell carcinoma (bronchioalveolar component). A left upper lobectmy was performed with a left thorocotomy. Thirty nine months after that operation a metachronous epidermoid carcinoma was determined on the right upper lobe, consequently a right upper lobectomy was performed to him. A squamous cell carcinoma was determined on the right intermedier bronch as a third time and second metachronous 49 months later after the first operation. After all he underwent chemotherapy. We reported this case because of a second metachronous tumour in the same patient has not been reported before and to emphasize the effects of postoperative follow up on the prognosis.