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Ruptured retropharyngeal Streptococcus equi abscess, horse
ruptured-retropharyngeal-strep-equi-reshs915-lascola-sized
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.