paranasal

paranasal /para·na·sal/ (-na´z'l) alongside or near the nose.

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paranasal

beside the nasal cavity.

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paranasal sinuses

mucosa-lined air cavities in the bones of the skull, communicating with the nasal cavity. See also sinus.

Paranasal sinuses of the dog. By permission from McCurnin D, Poffenbarger EM, Small Animal Physical Diagnosis and Clinical Procedures, Saunders, 1991

paranasal sinus cysts

occur in horses primarily in the caudal maxillaary sinus and occasionally in the frontal or rostral sinus. Very young or old horses are affected. They present with nasal respiratory obstruction, facial swelling and nasal discharge. An increase in intramaxillary sinus pressure results in displacement of the nasal septum in a significant proportion of cases.

paranasal sinus polyps

rare cause of nasal bleeding in horses.