Hello,  I am new here.  I found a lump in my jaw over a year and a half ago when I was pregnant.  I assumed it was a lymph node because I was so sick.  It sisn't go away when I had my daughter so I went to my internist.  He said it didn't feel like anything to worry about.  Just what I wanted to hear!!
A couple of weke ago I went to an ENT because I was concerned that the lump was still there and seemed a bit bigger.  He sent me for x-rays and a CT scan.  They saw a large cyst on my lower right jaw.  They are sending me into NYC to a specialist in head and neck oncology/reconstructive surgery because the cyst is on the jaw bone.  
Here are my questions:
Can a cyst be cancer?  The ENT was unclear about what exactly he saw.  I called him after my appointment but he hasn't returned my phone calls. 
If the cyst wraps around under my jaw, will I have my jaw removed?  
The ENT didn't send me for any blood work.  SHould I request some?  Is that standard?
Is there anyone out there who had/has cancer of the lower mandible?  
I know that no one is really going to give me medical advice online and I am seeing a specialist at the end of this week but if you could give me feedback I would appreciate it.  
I am SOOOOOO scared.  I have two little babies - a 3 year old with autism and a 9 month old.  If I am dying I don't have anuone around who is capable of taking care of my autistic son.