Rhodococcus equi and Arcanobacterium haemolyticum: Two "Coryneform" Bacteria Increasingly Recognized as Agents of Human Infection
A. Bronchial tissue Gram stain showing intrahistiocytic coccobacillary forms of Rhodococcus equi. Original magnification, x 1,000. B.Open lung biopsy showing coalescent microabscesses with numerous histiocytes containing Rhodococcus equi organisms. PAS stain. Original magnification x 250. Figure provided by Dr. Margie Scott, Vanderbilt University Medical Center.