Can masses grow slow in the lungs without siptoms for more than five years even they are critical in sizes. ?

Yes: It depends what critical in size means. A growing cancer for example can double in volume every ninety days, but can start as a speck. On the other hand a scar can remain a scar for a long time and can develop into scar carcinoma later. There are other nodules or tumors which are not cancer and stay as they are. If not pressing on airways it may not cause symptoms.