Volume 31, Number 7—July 2025
Dispatch
Multisystemic Disease and Septicemia Caused by Presumptive Burkholderia pseudomallei in American Quarter Horse, Florida, USA
Figure 1

Figure 1. Postmortem photographs of an American quarter horse in study of multisystemic disease and septicemia caused by presumptive Burkholderia pseudomallei, Florida, USA. A) The submandibular lymph node was enlarged up to 20 cm in diameter and almost completely effaced by purulent material that extended into the retropharyngeal space and drains near the mandibular ramus. B) Cecal lymph nodes were diffusely enlarged up to 6 cm in diameter and filled with purulent material (red circle). C) The lung was diffusely firm with rib impressions and multifocal 5 × 5-mm to 1 × 2-cm abscesses (blue arrow). D) The liver contained multifocal random 1 × 1-cm pale tan foci scattered throughout the hepatic parenchyma (yellow arrows).