Fig. 3

Treatment of the back abscess. a: Incision of back abscess; b: drainage of back abscess; c: appearance of the aspirated fluid. d: Gram’s stain of the aspirated pus showing a large number of white blood cells along with a small number of gram-positive bacteria (white arrow). e: Weak acid-fast staining (white arrow). f: Growth of a large number of colonies on the medium