Enlarged Lynmph Node post surgery

Hi all,

 

My dad had a lobectomy last Feb and first scan was all clear. Today after his second scan he has been told he has an enlarged lymph node and needs a biopsy! Im so gutted and was praying for all clear.

 

If its the worst he will need chemo.

 

Are generally enlarged nodes post cancer a sign its spread and come back? Whats the chances of it being from something else? I cant believe it - I was praying all would be well and he would be onto yearly scans! :( x