Bishop Thomas Doran, who heads the Rockford Diocese, has returned home to recuperate from Dec. 14 surgery on his lung. It still is unclear when Doran, 70, will resume his day-to-day duties as bishop for the 11-county Catholic diocese, which includes McHenry and Kane counties. Doran was a patient at the Mayo Clinic in Rochester, Minn. for 11 days after the emergency surgery to remove a cancerous tumor from his left lung. Doctors found the tumor during the bishop’s routine annual physical conducted the week after Thanksgiving.