Disorders Of Salivary Glands Flashcards
Saliva also helps in -
Tooth mineralisation and wound healing
What origin is parotid and pituitary gland ?
Ectodermal
What is the name of major duct of parotid gland ?
Stensen’s Duct
Where does stensen’s duct opens ?
It opens into the vestibule of the mouth opposite the crown of the upper second molar teeth
Where does wharton’s duct open?
Open into the floor of the mouth paramedian to frenulum
Where does sublingual gland opens?
In sublingual mucosa
Easily stone formed in submandibular duct due to
Wharton’s duct is horizontal and the secretion is more mucus or thick, ascending course of it’s duct , the alkaline saliva precipitates calcium and phosphate
What does the parotid gland envelope?
Facial nerve, the terminal branches of external carotid artery, the retromandibular and superficial temporal vein and the lymph node
What are the terminal branches of external carotid artery?
Maxillary artery and superficial temporal artery
What is the course of parotid duct ?
It passes over masseter muscle and enters the buccal mucosa through the buccinator muscle at the level of upper second molar tooth
What nerve and from where carries the pre-ganglionic parasympathetic fibers of parotid gland?
Glossopharyngeal nerve from the in inferior salivatory nucleus
What is the postganglionic parasympathetic fibres and where does it later join of parotid gland?
It is Otic ganglion and joints the auricotemporal nerve
The submandibular ganglion innervates the submandibular gland by the postganglionic parasympathetic fibres from
The superior Salivatory nucleus of the pons through the chorda tympani and lingual nerve
Where does the submandibular duct lies?
Between the hyoglossus and Mylohyoid muscle after arising from the deep part of the Gland
Where does submandibular gland drains?
Sublingual papilla into the anterior floor of the mouth
What is most commonly injured in submandibular surgery?
The Mandibular branch of facial nerve
What is the name of the duct of sublingual gland and where does it exit ?
Rivinus’s duct which exit along the sublingual fold at the floor of the mouth
What is the name of the pathology of the sublingual glands that mainly involves the formation of a mucus retention cyst ?
Ranula or Little frog
What is plunging Ranula?
When the ranula remain localised or insinuate through the mylohyoid muscle to present as a submental swelling
What is sarcoidosis?
An inflammatory disorder characterised by multiple non-caseating granulomas in multiple system
What is the finding of chest radiograph of sarcoidosis?
Shows bilateral hilar lymphadenopathy and reticular opacities in the lungs
What are the viral causative organism of sialadenitis?
Mumps, cytomegalovirus,coxsackie virus, HIV, parainfluenza virus type one and type two, influenza virus a and Herpesvirus
A woman has dry mouth difficulty in swallowing and speaking intolerance to spicy food and also acidic and crunchy food and has a loss of taste sensation and denture wearing issue. What will be the diagnosis?
XEROSTOMIA
What is the most common benign neoplasm of salivary gland?
Pleomorphic adenoma
What is the commonest malignant tumour of salivary gland?
Mucoepidermoid carcinoma
In which decade pleomorphic adenoma is commonly seen?
3 to 6 decade
Where does the PLEOMORPHIC adenoma frequently occur?
In the parotid gland
What can we see in microscope in case of PLEOMORPHIC adenoma?
Mixed epithelial, myoepithelial and Stromal components
What are the important anatomical relations to the submandibular gland?
Lingual nerve, hypoglossal nerve, the marginal mandibular branch of facial nerve, facial artery and ANTERIOR facial vein
Why does gustatory sweating occurs?
From cross inner action of the dermal sweat glands by the regenerating postganglionic parasympathetic nerve fibres of the auriculotemporal nerve
The factors affecting formation of tumour of salivary gland are
Radiation exposure, smoking, viral infections, environmental factors, and industrial exposure which includes rubber manufacturing, nickel compounds and hair dyes.
