A volunteer surgeon from Boston saved a child’s life in an urgent and complex surgery performed onboard the world’s largest non-governmental hospital ship, the 'Africa Mercy'. Dr. Mark Shrime performed the surgery to remove a 'fist sized' tumor from the throat of a four-year-old boy who was slowly suffocating. It was performed in one of the five operating rooms on the hospital ship with a team of professional medical volunteers from five countries. The surgeon had met the four-year-old boy named Emmanoel in Pointe Noir, Congo.