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salivary gland neoplasm
Etiology:
1) benign neoplasms:
- pleomorphic adenoma (most common salivary neoplasm)
- will recur unless fully enucleated
- firm, slowly growing mass in parotid gland, palate or cheek
2) malignant tumors:
- mucoepidermoid carcinoma
- adenoid cystic carcinoma
- adenocarcinoma
- may cause ulceration
- may produce facial numbness & paralysis via invasion of nerves
3) risk factors for malignancy
- prior radiation therapy
- smoking
- viral infections (EBV, HIV1, HPV)
Clinical manifestations:
- painless salivary gland mass most common presentation
- facial paralysis & lymphadenopathy suggest malignancy
Special laboratory:
- fine needle aspiration
Radiology:
- CT of head & neck with contrast [2]
Differential diagnosis:
- sialolithiasis
- sialadenitis
- lymphoma
Related
salivary gland
Specific
adenoid cystic carcinoma, salivary gland
benign salivary gland neoplasm
malignant salivary gland neoplasm
monomorphic adenoma
mucoepidermoid carcinoma, salivary gland
parotid gland neoplasm
pleomorphic adenoma; benign mixed tumor
Warthin's tumor; papillary cystadenoma lymphomatosum
General
digestive system neoplasm
salivary gland disease
References
- Harrison's Principles of Internal Medicine, 14th ed.
Fauci et al (eds), McGraw-Hill Inc. NY, 1998, pg 186, 1128
- NEJM Knowledge+ Question of the Week Sept 29, 2020
https://knowledgeplus.nejm.org/question-of-week/391/
- Kessler AT, Bhatt AA.
Review of the major and minor salivary glands, part 2:
neoplasms and tumor-like lesions.
J Clin Imaging Sci 2018; 8:48
PMID: 30546932 PMCID: PMC6251244 Free PMC article