surgery of the oropharynx Flashcards
what are otopharyngeal polyps?
Inflammatory polyps originating from the middle ear, nasopharynx or eustachian tube –> common in younger cats
Typically disease starts in middle ear –> breaks through membrane into external ear OR back into eustachian tube.
CS of nasopharyngeal obstruction
- chronic nasal discharge
- sneezing
- gagging
- stertorous breathing
CS of middle ear disease
- head tilt
- nystagmus
- horner’s
CS of otitis externa
- discharge
- scratching, shaking
Treatments of otopharyngeal polyps
- Traction-avulsion (recurrent 50% + bleeding)
2. Surgical - ventral bulla osteotomy/soft palate incision
what structures are found in the smaller dorsal compartment of the bulla?
- promontory
- auditory ossicles
- sympathetic n
what is the prognosis for otopharyngeal polyps?
good to excellent w/ surgical removal
list the salivary glands
- Parotid
- Mandibular
- Sublingual
- Zygomatic
- Buccal
non-neoplastic diseases of the salivary gland DDx
- sialoadenitis
- sialoliths
- rupture
which salivary glands are predisposition sites for neoplasia in the dog vs cat?
Dog - parotid
Cat - mandibular
what neoplasia is most common in salivary glands?
Adenocarcinomas –> gland enlargement –> mets to local LNs
what is a mucocele?
accumulation of saliva w/in tissue
Ddx for swelling at back of pharynx near tonsillar crypts
Sublingual sialoceles (ranulas), pharyngeal sialoceles, neoplasia
clinical features of sialoceles
Soft to firm, often non-painful, non-inflamed swelling caudal to the angle of the mandible (+/- ventral neck)
+ pharyngeal protrusion
+ elongated fluid accumulations underneath or adjacent to tongue
Dx of mucocele/sialocele
- aspiration of clear to honey-coloured, viscid saliva