Inflammation and enlarged lymph node in lung

[Corkie04]

Could anyone please tell me what this could mean, an enlarged lymph node and inflammation of of my right lung have shown up on a CT scan when initially being scanned for other reasons. An incidental finding but a bit of a worry as now have an urgent referral to see a chest specialist. Has anyone had anything similar or know of anything similar or what could be the findings? Naturally I am very concerned as I have pain in my upper right back when breathing but it's very painful if I cough...along with other symptoms such as fatigue, itchy skin, night sweats, general feeling of unwell and sometime headaches.