Ruptured retropharyngeal Streptococcus equi abscess, horse
Ruptured retropharyngeal <i >Streptococcus equi</i> abscess, horse
Ruptured retropharyngeal Streptococcus equi abscess, horse

    Endoscopic image of a retropharyngeal S equi abscess rupturing through the floor of the medial compartment of the right guttural pouch.

Courtesy of Dr. Bonnie R. Rush.