The salivary glands

2021 ◽  
pp. 435-454
Author(s):  
Daniel R. van Gijn ◽  
Jonathan Dunne

There are three paired major salivary glands of the head and neck, all named according to their location and each contributing to saliva and enzyme production via their respective ducts to assist with mastication and digestion. At rest, the lion’s share (60%) of saliva production is from the submandibular glands. On stimulation, the parotid contribution increases from 20% to 50%. There are up to 1000 minor salivary glands found within the submucosa of the oral cavity – 1-2mm in size and predominantly mucous in nature. The parotid glands are irregular shaped masses of lobulated tissue situated on the side of the face, reaching from the zygomatic arch superiorly to the upper part of the neck inferiorly where they overly the posterior belly of digastric and upper sternocleidomastoid muscle. Anteriorly, the gland lies between the posterior border of the mandibular ramus before continuing below the external acoustic meatus towards the mastoid process posteriorly.

There are three main pairs of major salivary glands in the head and neck, namely the parotid, submandibular, and sublingual salivary glands. In addition to these major glands there are numerous minor salivary glands distributed throughout the oral cavity. These minor salivary glands are situated in the adnexal layer of the oral mucosa. This chapter covers the relevant anatomy, physiology, taking a history, clinical examination, and investigations. It then goes on to discuss xerostomia, Sjögren’s syndrome, diffuse and localized gland swelling, sialolithiasis, ranula, and disorders of the minor salivary glands.


1999 ◽  
Vol 113 (5) ◽  
pp. 483-485 ◽  
Author(s):  
P. Jassar ◽  
N. D. Stafford ◽  
A. W. MacDonald

AbstractPleomorphic adenoma is the commonest benign tumour of the major salivary glands. It can also occur in minor salivary glands, mainly in the oral cavity, but also in other sites in the head and neck both within and outwith the upper aerodigestive tract. We present a rare case of pleomorphic adenoma of the nasal septum with consideration of the clinical management and a review of the literature.


2005 ◽  
Vol 19 (1) ◽  
pp. 58-61 ◽  
Author(s):  
Melissa Turk-Gonzales ◽  
Ib R. Odderson

Drooling is common in patients with neurological disorders. Recently, botulinum toxin type B has been shown to be effective in the treatment of drooling. The authors present a unique case of a 57-year-old man with a history of a brainstem stroke and severe drooling. The patient’s parotid and submandibular glands were injected under ultra-sound guidance with botulinum toxin type B. Saliva was collected and quantified before and after the injections by 2 different collection methods: suctioning and dental rolls. Total saliva production decreased by 23.8% after injection of the parotid glands and by 85.8% after submandibular injection compared to the preinjection level. The 2 methods demonstrated similar results. In addition, the patient experienced less drooling and increased participation in therapies without any side effects. This case demonstrates that saliva secretion and drooling can effectively be treated by injections of botulinum toxin type B into the salivary glands.


1996 ◽  
Vol 110 (7) ◽  
pp. 700-703 ◽  
Author(s):  
J. I. de Diego ◽  
R. Bernaldez ◽  
M. P. Prim ◽  
D. Hardisson

AbstractPrimary adenocarcinomas of the oral cavity in minor salivary glands are distinctive lesions which can be subclassified according to their growth patterns or histomorphology. Polymorphous low-grade adenocarcinoma (PLGA) of minor salivary tissue has been recognized as a distinct entity. We report an unusual case of PLGA of the tongue. Only a few previous cases have been reported in the English literature. The treatment is discussed and a review of the current literature concerning this tumour is included.


2015 ◽  
Vol 63 (1) ◽  
pp. 63-68 ◽  
Author(s):  
Isabela Fernandes SOUZA ◽  
Michele Montini KAWATAKE ◽  
Andresa Borges SOARES ◽  
Paulo de Camargo MORAES ◽  
Vera Cavalcanti de ARAÚJO ◽  
...  

Sialolithiasis, or salivary calculus, is a disease of the salivary glands, characterized by the formation of mineralized structures within the excretory salivary ducts or the glandular parenchyma. Approximately 80% occur in the submandibular gland, followed by the parotid and sublingual glands. Although rare, sialolithiasis can also occur in the minor salivary glands. Although the oral cavity and upper lip are the most common sites, they can develop in any region of the oral cavity that contains minor salivary glands. Treatment is based on surgical excision of the lesion, with a favorable prognosis. This study presents three cases of sialolithiasis of minor salivary glands of the upper and lower lip, addresses their clinical characteristics and correlation with microscopic findings, diagnosis and treatment plans. Etiology and factors that should be considered during diagnosis, appropriate treatment and improved prognosis are discussed in this study.


2020 ◽  
Vol 13 (6) ◽  
pp. e234669
Author(s):  
Rishi Suryavanshi ◽  
Ahsan Abdullah ◽  
Neerja Singh ◽  
Madhusudan Astekar

Mucocele is a benign lesion characterised by an extravasation or retention of mucous secretion in submucosal tissue from minor salivary glands. The occurrence of mucocele is common in the oral cavity, with more than 70% of cases on lower labial mucosa. The occurrence of mucocele on the tongue is considered rare and accounted for only 2.25% in the previous literature. Histopathological examination plays a great role in the confirmation of the clinical diagnosis. Management of mucocele is at times challenging. This paper highlights a rare case of mucocele in a 5-month-old infant who was successfully managed under day-care anaesthesia.


2019 ◽  
Vol 23 (3) ◽  
pp. 356 ◽  
Author(s):  
S Nonitha ◽  
TL Yogesh ◽  
S Nandaprasad ◽  
BUma Maheshwari ◽  
IP Mahalakshmi ◽  
...  

2021 ◽  
pp. 397-434
Author(s):  
Daniel R. van Gijn ◽  
Jonathan Dunne

The mouth is the common aperture to the aerodigestive tract. With the coordinated assistance of the tongue and lips it contributes to the formation of meaningful sound whilst the presence of intact dental arches allow for mastication. The oral cavity proper represents the atrium beyond the lips reaching to the palatoglossal arches posteriorly, where the oropharynx begins beyond the oropharnygeal isthmus. It is restricted by the cheeks laterally, the hard and soft palate superiorly and the mobile tongue resting on the mylohyoid muscle inferiorly. The paired major salivary glands drain into the oral cavity along with numerous minor salivary glands. The tongue is a thick, mucosa covered muscular structure concerned with mastication, taste, talking and swallowing. The palate is the roof of the mouth, separating the oral and nasal cavities and participating in speech and swallowing. It can be divided into two parts: a bony anterior hard palate and soft posterior palate.


Sign in / Sign up

Export Citation Format

Share Document