My father 65  had a slight double vision on left eye ,  we contacted many doctors (eye specialist) but no progress at last one doctor recommended MRI . The MRI show Pituitary adenoma compressing left optical never sizing 40mm x 27mm , unfortunately the CBC shows WBC cells more, doctors has put him on imatinib 400 and WBC are reducing , can we make the surgery for Pituitary adenoma and the cost and the type of surgery I want to know..?

Summarized question: What does  pituitary adenoma suggest?