From the New York Daily News:

Bobby Murcer emerged in good spirits yesterday from six hours of surgery to remove a brain tumor and, according to close family sources, the Yankee legend's doctor was "completely happy" with how the operation went. ...

It will take a few days before doctors can fully analyze the pathology reports on the tumor, but initial signs all appear to be positive. Kay Murcer said, "Bobby fully expects to be in spring training in March."

Great to hear.