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16 Φεβ 2023 · The most common causes of secondary sinusitis described in horses are mycotic sinusitis, sinus cyst, progressive ethmoidal haematoma, traumatic sinusitis, oro-maxillary fistula formation, sinus neoplasia or dental sinusitis, which is the most common (O’Leary and Dixon, 2011).
Sinus cysts are typically found in young adult horses but can also occur in older horses. The primary clinical signs are facial deformity, nasal discharge, and partial airway obstruction. Radiographs are more likely to identify a sinus cyst than is endoscopic examination, because they do not extend into nasal passages.
24 Αυγ 2022 · Sinusitis is an inflammatory condition that often involves excessive nasal discharge. Horses with sinus diseases can also experience swelling in the face or reduced appetite. The causes of sinusitis vary but can include dental disease or bacterial infection of the upper respiratory tract.
15 Οκτ 2024 · Paranasal sinusitis, especially cases of secondary or chronic disease, can be difficult to treat, as it depends on the cause of the disease, as well as the bacteria involved . The most common bacterial isolates in cases of primary sinusitis are Streptococcus equi and Streptococcus zooepidemicus ( 5 , 6 ), whereas culture of secondary sinusitis ...
Signs & Symptoms. The most common sign of sinusitis (either primary or secondary) is nasal discharge. The nasal discharge usually occurs on the side of the affected sinus (unilateral) only (Figure 1). The appearance and character of the discharge is variable, and may contain pus or blood, with or without an odor.
Inflammation and swelling in the nasal mucosa from a viral or bacterial infection could obstruct the nasomaxillary opening, block sinus drainage, and thereby predispose to or exacerbate sinusitis. Occlusion of the nasomaxillary aperture has been reported as a cause of sinusitis in young horses .
 Learn about the causes of sinusitis in horses, the best ways to prevent development of the condition, and the treatments available for relieving both symptoms and the infection.
