By Harry Werner, VMD, WEVA Board Member

History: An 18-year-old Quarter Horse gelding’s groom noticed a slight blood stain on a fore fetlock but could find no wound (pictured at left). This episode repeated itself after each feeding. So the trainer notified the owner and recommended the horse be examined by a veterinarian.  

Physical Examination:  After ruling out other potential diagnoses, the veterinarian focused on the horse’s mouth and skull. The veterinarian did not identify any source of bleeding, so he elected to perform upper airway endoscopy. This revealed a hematoma in the right paranasal sinus