I have severe sinus headaches, neck & should muscle pain.  I also frequently pinch the nerves in my neck.  I have a large hard boney  bump behind my right ear.  X-rays were taken & they diagnosed a sinus cyst in the mastoid. They want me to have an MRI & referral to ENT.  What does this mean?  Do they biopsy the cyst? Should I be overly concerned?  Do they remove the boney bump & cyst?
Thanks for posting you query to Chat Doctor .cyst are fluid filled sac can develop anywhere in body. You don't need to worry as biopsy not done on cyst.radiological examination like CT scan and MRI are helpful in detection of exact locating and nature of fluid or content of cyst .cyst are painless and slowly increases in size and produces pressure effect over neighboring structure hence require treatment .the treatment of cyst is its complete surgical removal therefor your physician are sending you to ENT surgeon for final opinion regarding your problem. Hope you would be satisfied with my answer.  Feel free to communicate if any query.regards, Chat Doctor.