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Equine respiratory tract — intra-sinus progressive ethmoidal haematoma



Unilateral epistaxis in the horse presents a diagnostic challenge in order to differentiate between facial trauma, progressive ethmoidal haematoma and more serious conditions such as guttural pouch mycosis or sinus neoplasia. Clinical examination, endoscopy per nasum, oral examination, radiography, sinoscopy and in some cases, scintigraphic examination or computed tomography can be required to make a definitive diagnosis. Treatment options for ethmoidal haematoma cases include surgical removal, laser vaporisation and repeated intra-lesional injection with formalin. In this case, surgical removal was performed and the horse recovered well.