马红球菌肺炎，肺，驹
Photograph of whole lung at postmortem examination demonstrating severe abscessation due to Rhodococcus equi. Lung is from a 2.5-month-old Thoroughbred foal with acute respiratory distress. On this transverse cut section, there is much more abscessed tissue than normal lung tissue.
Courtesy of Dr. Kara Lascola.
