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Benign tumour of the submandibular gland, also known as pleomorphic adenoma, presented as a painless neck mass in a 40-year-old man. At the left of the image is the white tumour with its characteristic cartilaginous cut surface. To the right is the normally lobated submandibular salivary gland. Warthin's tumor; Myoepithelioma; Basal cell ...
The Stafne defect is thought to be a normal anatomical variant, as the depression is created by ectopic salivary gland tissue associated with the submandibular gland and does not represent a pathologic lesion as such. This cavity is commonly observed on panoramic radiograph.
However, salivary tumors show a great deal of morphological diversity, as well as variations in the nature of the lesion (malignant vs. benign): approximately 20% to 25% of parotid tumors, 35% to 40% of submandibular tumors, and more than 90% of sublingual gland tumors are malignant. [8]
A study done on the epidemiology of sialadenitis in the United States of America found that acute suppurative parotitis is responsible for 0.01–0.02% of hospital admissions, with the submandibular gland accounting for 10% of cases of sialadenitis in the major salivary glands in this population. [1]
About 85% of stones occur in the submandibular gland, [3] and 5–10% occur in the parotid gland. [2] In about 0–5% of cases, the sublingual gland or a minor salivary gland is affected. [ 2 ] When minor glands are rarely involved, caliculi are more likely in the minor glands of the buccal mucosa and the maxillary labial mucosa. [ 4 ]
[8] [9] [10] The most common form is combined cleft lip and palate and it accounts for approximately 50% of cases, whereas isolated cleft lip concerns 20% of the patients. [ 11 ] People with cleft lip and palate malformation tend to be less social and report lower self-esteem, anxiety and depression related to their facial malformation.
Ranula in a female. A ranula usually presents as a translucent, blue, dome-shaped, fluctuant swelling in the tissues of the floor of the mouth. If the lesion is deeper, then there is a greater thickness of tissue separating from the oral cavity and the blue translucent appearance may not be a feature.
Adenoid cystic carcinoma is a rare type of cancer that can exist in many different body sites. This tumor most often occurs in the salivary glands, but it can also be found in many anatomic sites, including the breast, [1] [2] lacrimal gland, lung, brain, Bartholin gland, trachea, and the paranasal sinuses.