In this study, a relative mast cell increase was the most common cytological profile in horses with lower airway inflammation and was associated with season.
A direct association between cytological evidence of airway inflammation and AHR was not identified in this population of clinically normal horses. Determining the presence and measuring inflammatory cell mediators in BALF may more accurately reflect AHR. In addition, normal values for cell proportions in BALF may vary between different populations of horses and more appropriate regional reference ranges should be established.
Summary
An aged miniature pony was referred for chronic recurrent oesophageal obstruction. Endoscopic examination demonstrated distal oesophageal constriction and radiography confirmed an irregular soft tissue mass in the region of the distal intrathoracic oesophagus. The pony was subjected to euthanasia and post mortem examination confirmed squamous cell carcinoma of the distal oesophagus and stomach. Oesophageal squamous cell carcinoma is a rare condition in horses, but should be considered as a differential diagnosis in cases of chronic recurrent obstruction, particularly in older horses.
Background A 7-year-old Thoroughbred gelding presented with muscle fasciculation, reluctance to move, profuse sweating, tachycardia, tachypnoea and a localised, unilateral swelling on the muzzle. History and physical examination were suggestive of snake envenomation.
Summary
A 3‐year‐old filly was presented for severe lameness referable to the left front fetlock joint. Radiographs confirmed an osseous cyst‐like lesion and synovial fluid cytology ruled out sepsis. The filly responded poorly to medical management and was subsequently subjected to euthanasia. Post mortem examination confirmed an impact fracture of the proximal phalanx, previously undiagnosed in the horse.
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