ROME—Pope Francis was discharged from a Rome hospital and returned home to the Vatican on Wednesday, 10 days after undergoing planned surgery to remove half his colon. Francis sat in the passenger seat of the Ford car, which left Rome’s Gemelli Polyclinic around 10:45 a.m. local time. As his small motorcade approached a side entrance to the Vatican, the Ford stopped and Francis got out with the help of a bodyguard. He greeted some Italian security guards—two army soldiers standing guard and a handful of Italian police motorcycle escorts—and got back in the car, which then entered the Vatican through the Perugino gate. Francis had half of his colon removed for a severe narrowing of his large intestine on July 4, his first major surgery since he became pope in 2013. It was a planned procedure, scheduled for early July when the pope’s audiences are suspended anyway and Francis would …