Presentation is loading. Please wait.

Presentation is loading. Please wait.

Disorders of the salivary glands

Similar presentations

Presentation on theme: "Disorders of the salivary glands"— Presentation transcript:

1 Disorders of the salivary glands
DNT 243 Disorders of the salivary glands Dr. Shahzadi Tayyaba Hashmi

2 Disorders of the salivary glands
Saliva is produced by three paired major salivary glands, the parotid, submandibular and sublingual glands, and numerous minor salivary glands which are present throughout the oral mucosa Any of these salivary glands may be affected by disease The most important disorders of salivary glands are Mucocele Mucous retention cysts Mucous extravasation cysts Sialoadenitis Sjogren’s syndrome Salivary glands neoplasms

3 1) Mucocele Clinical features:
Mucocele is a clinical term given to a cystic swelling usually caused by trauma affecting the minor salivary glands Clinical features: Commonly occurs on the lower lip and cheeks of young individuals They appear as sessile ( broad-based) blue swellings Patient often give a history of a rapid increase in size following trauma

4 Histological types of mucocele
Two histological types are recognized, Mucous retention cysts Mucous extravasation cysts

5 A) Mucous extravasation cysts
Most Common type Occurs as a result of trauma to the minor salivary gland duct Trauma causes the duct to rupture and saliva spills into the tissue rather than the oral cavity Healing cannot takes place

6 B) Mucous retention cysts
Relatively rare as compared to mucous extravasation cysts Caused by trauma but the duct becomes blocked usually by scar tissue Saliva is unable to enter the oral cavity Duct swells up like a balloon filled with water Treatment: The treatment of both lesions is excision including the underlying minor salivary glands

7 2) SIALOADENITIS Etiology: Clinical features:
Inflammation affecting the salivary glands is known as Sialoadenitis Etiology: Infections ( mumps) Ductal obstruction ( A salivary stone or calculus is a common cause of obstruction and submandibular gland is most often affected) Clinical features: Patient complains of pain and swelling of the submandibular gland particularly just before or at meal times because the increased outflow of saliva is blocked

8 2) SIALOADENITIS Treatment:
Stone is removed if it is accessible but sometimes it is necessary to remove the gland as well

9 3) SJOGREN'S SYNDROME Etiology: Autoimmune disease
Affect salivary glands, lacrimal glands and many other organs in the body Etiology: Unknown Patients have circulating auto antibodies in their blood and their salivary glands are destroyed by numerous lymphocytes which infiltrate into the glands This caused lack of saliva and dry mouth ( xerostomia)

10 Types of Sjogren's syndrome
Primary Sjogren's syndrome, in which patients have dry eyes and a dry mouth ( xerostomia) Secondary Sjogren's syndrome, in which patients have another autoimmune disorder such as rheumatoid arthritis, in addition to dry eyes and dry mouth Treatment: Artificial saliva Pilocarpine to enhance salivary secretion

11 4)Salivary glands neoplasms
May be benign or malignant Majority of salivary gland neoplasms are benign and the most common type is Pleomorphic adenoma Malignant neoplasms are rare but mucoepidermoid carcinomas and adenoid cystic carcinomas are most common

12 Difference between benign and malignant neoplasms of salivary glands
Benign tumours Malignant tumours Slow growth of lesions Rapid growth of lesions Well-defined margins, which are easy to feel Indistinct margins and difficult to feel If they arise from minor salivary glands in the oral cavity, they do not ulcerate the oral mucosa If they arise from minor salivary glands in the oral cavity, they often ulcerate through the oral mucosa Painless Painful


Download ppt "Disorders of the salivary glands"

Similar presentations

Ads by Google