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what proportion of parotid are benign, submand are malig and subling are malig?
- parotid 80% B
- submand 60% M
- subling 90% M
2 examples of benign tumours
pleomorphic adenoma and warthins tumour (adenolymphoma). do superfiicial parotidectomy
features of warthins
- bilateral, only in PAROTID
- older age group
- well delineated sometimes cystic
features of pleomorphic adenoma?
- slowly grow, painless no nerve involvement
- firm solitary smooth
- both mesenchymal and epithelial elements
3 examples of malignant tumours
- mucoepidermoid carcinoma -low grade, good prog, parotid involvement common
- acinic cell carcinoma
clinical features of parotitis 3 main
- pus at duct opening
- tender gland
- hot gland
different treatment of parotitis depending if viral or bact?
- bacterial - iv antibiotics
- viral - conservative
causes of parotitis?
- bacterial: staph, TB, actinomycoses
- viral: mumps
give 5 main causes of salivary gland SWELLING and subdivide one of them
- inflammatory: infective (mumps), autoimmune (sjogrens), granulomatous (sarcoid)
where is parotid gland found?
in the cheek, behind the mandible
what is the name of the parotid duct and where does it emerge?
- stenson's duct
- inner cheek opposite 2nd upper molar
where does parotid gland emerge if swollen
behind the jaw, between the angle and TMJ
how can u differentiate between cervical lymphadenopathy and swollen parotid?
- you can feel in front of lymph node
- but cannot get in front of parotid gland
where is submandibular gland located
medial to the mandible
what is the submandibular duct called and where is it located and where does it open?
- wharton's duct
- around mylohyoid
- opens either side of frenulum of tongue