[Synchronous lung carcinoma: a case report].

Synchronous tumor is defined as presenting two different tumors at the same time in an organ. Finding more than one primary pulmonary tumors at lung in different lobes or in different sides at the same time mean pulmonary synchronous tumor. In cases who have more than one mass, synchronous tumors should be appeared that; surgical treatment chance can be given and a long survival can be achieved than medical treatment protocol.