Cysts and other non-neoplastic diseases and salivary glands Flashcards
Anatomy of salivary glands
Parotid (serous)
Submandibular (mucous and serous)
Sublingual (mucous and serous)
Mucocele
Benign
Mucous containing cyst
Minor SG
Epidemiology mucocele
common
painless
swelling
M>F
young adults
Aetiology mucocele
Minor SG
Mucus filled cysts
pathogenesis – trauma
CP mucocele
single
fluctuant
normal/bluish discolouration
non-pulsatile
normal overlying epithelium
1mm-1cm
common sites e.g., inner aspect lower lip
Variants of mucocele
mucus extravasion cyst
mucus retention cyst
What is the difference between MEC and MRC?
MEC is the swelling of CT consisting of a collection of mucus. This occurs because of a ruptured salivary gland duct, usually caused by local trauma in the cases of MEC.
MRC is an obstructed or ruptured salivary duct. Occurs when saliva cannot escape minor SG.
Management mucocele
Excisional biopsy
Cryosurgery
Sclerotic agents
Ranula
a fluid collection or cyst that forms in the mouth under the tongue.
filled with saliva that has leaked out of a damaged salivary gland.
salivary glands are small structures around the mouth which make saliva.
Aetiology of ranula
pathogenesis believed to be obstruction
CP ranula
FOM
Unilateral
2-3cm in diameter
soft, fluctuant, blue
painless
affects speech
sublingual, submandibular gland
MES/MRS (histological presentation)
Classification of ranula
Simple (sublingual space)
Plunging (submandibular space - beyond mylohyoid muscle)
Management of ranula
aspiration
marsupialization
excision of the gland
Sialosis
Asymptomatic, non-inflammatory, non-neoplastic parenchymal salivary gland disease accompanied by a persistent painless bilateral swelling of salivary glands – commonly involves parotid glands
Sialosis - aetiology
drugs eg antihypertensives
alcohol
endocrine conditions
nutritional disorders eg malnutrition
