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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
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2 examples of benign tumours
pleomorphic adenoma and warthins tumour (adenolymphoma). do superfiicial parotidectomy
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features of warthins
- benign
- bilateral, only in PAROTID
- older age group
- well delineated sometimes cystic
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features of pleomorphic adenoma?
- commonest
- slowly grow, painless no nerve involvement
- firm solitary smooth
- both mesenchymal and epithelial elements
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3 examples of malignant tumours
- mucoepidermoid carcinoma -low grade, good prog, parotid involvement common
- adenocarcinoma
- acinic cell carcinoma
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clinical features of parotitis 3 main
- pus at duct opening
- tender gland
- hot gland
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different treatment of parotitis depending if viral or bact?
- bacterial - iv antibiotics
- viral - conservative
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causes of parotitis?
- bacterial: staph, TB, actinomycoses
- viral: mumps
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give 5 main causes of salivary gland SWELLING and subdivide one of them
- mucocoele
- inflammatory: infective (mumps), autoimmune (sjogrens), granulomatous (sarcoid)
- neoplastic
- calculi
- idiopathic
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where is parotid gland found?
in the cheek, behind the mandible
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what is the name of the parotid duct and where does it emerge?
- stenson's duct
- inner cheek opposite 2nd upper molar
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where does parotid gland emerge if swollen
behind the jaw, between the angle and TMJ
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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
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where is submandibular gland located
medial to the mandible
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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
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