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Equine nasal cysts are abnormal fluid filled sacs which occur inside the nasal sinuses of horses. The cysts are lined with epithelium, and usually occur in the ventral conchae or maxillary sinuses, [1] most commonly in horses less than one year old. [2] Surgical removal of the cyst has a good prognosis for the horse.
Sphenopalatine sinuses: within the palatine and sphenoid bones, these connect to the caudal maxillary sinus. [1] Larynx of the horse: 1 hyoid bone; 2 epiglottis; 3 vestibular fold, false vocal fold/cord, (plica vestibularis); 4 vocal fold, true vocal cord, (plica vocalis); 5 musculus ventricularis; 6 ventricle of larynx (ventriculus laryngis ...
Equid alphaherpesvirus 4, formerly Equine herpesvirus 4 (EHV-4) is a virus of the family Herpesviridae that cause rhinopneumonitis in horses. It is the most important viral cause of respiratory infection in foals. [2] Like other herpes viruses, EHV-4 causes a lifelong latent infection in affected animals.
[1] [2] The duct begins in the eye socket between the maxillary and lacrimal bones, from where it passes downwards and backwards. The opening of the nasolacrimal duct into the inferior nasal meatus of the nasal cavity is partially covered by a mucosal fold (valve of Hasner or plica lacrimalis). [3]
Extension into the maxillary alveolar process may cause the roots of the molars and even premolars to lie just beneath the floor of the sinus or even project through the floor and into the sinus; in such cases, the roots of the teeth are typically surrounded by a thin layer of bone, but may sometimes lie directly underneath the mucous membrane ...
Chronic rhinosinusitis is a common medical condition characterized by symptoms of sinus inflammation lasting at least 12 weeks. The cause is unknown and the role of microorganisms remains unclear. It can be classified as either with or without nasal polyposis. [8] Cystic fibrosis (CF) is the most common cause of nasal polyps in children ...
“After 30 minutes, seizures cause brain damage. So he was likely getting one week’s worth of brain damage already out of the gate. And it’s possible that he was having seizures in utero and ...
Maxillary – may cause pain or pressure in the maxillary (cheek) region, often experienced as toothache or headache. [26] Frontal – may cause pain or pressure in the frontal sinus cavity (above the eyes), often experienced as headache, particularly in the forehead area.