Podcast
Questions and Answers
What is the most common benign tumor of salivary glands?
What is the most common benign tumor of salivary glands?
Which of the following tumors is typically associated with smoking as a risk factor?
Which of the following tumors is typically associated with smoking as a risk factor?
Which malignant tumor is most commonly found in the major salivary glands?
Which malignant tumor is most commonly found in the major salivary glands?
What is a distinguishing clinical feature of Adenoid Cystic Carcinoma compared to Pleomorphic Adenoma?
What is a distinguishing clinical feature of Adenoid Cystic Carcinoma compared to Pleomorphic Adenoma?
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What age group is primarily affected by Mucoepidermoid Carcinoma?
What age group is primarily affected by Mucoepidermoid Carcinoma?
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Which type of salivary gland tumor is typically bilateral?
Which type of salivary gland tumor is typically bilateral?
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Which malignant tumor is known for a poor prognosis and a high rate of local recurrence?
Which malignant tumor is known for a poor prognosis and a high rate of local recurrence?
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What type of cells are primarily found in Mucoepidermoid Carcinoma?
What type of cells are primarily found in Mucoepidermoid Carcinoma?
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Which salivary gland tumor is characterized by a well-defined encapsulation and presents as a painless rubbery swelling?
Which salivary gland tumor is characterized by a well-defined encapsulation and presents as a painless rubbery swelling?
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What is the histological characteristic of Acinic Cell Carcinoma?
What is the histological characteristic of Acinic Cell Carcinoma?
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Study Notes
Salivary Gland Tumors
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Benign Tumors (Adenomas):
- Pleomorphic Adenoma (Mixed Tumor): Most common, slow-growing, well-defined, painless, rubbery swelling on palpation, often in parotid gland. Can be unilocular or multilocular, with a fibrous capsule that can be deficient, leading to recurrence.
- Warthin Tumor (Adenolymphoma): Second most common, bilateral, slow-growing, painless, often parotid gland. Originates from epithelial tissue with lymph node involvement, not a lymphoma. Associated with smoking.
- Canalicular Adenoma: Common in upper lip, rare in parotid, slow-growing swelling.
- Basal Cell Adenoma: 1-2% of cases, seen in parotid, often in the upper lip.
- Oncocytoma: Eosinophilic, bilateral, parotid-favored.
Malignant Tumors (Carcinomas)
- Mucoepidermoid Carcinoma: Most common malignant salivary gland tumor in the major glands, often in parotid. Can present clinically like a benign tumor but can progress to malignancy.
- Adenoid Cystic Carcinoma: Second most common, often in minor salivary glands, especially in the palate, potentially involves nerves causing pain, anesthesia, and paresthesia.
- Acinic Cell Carcinoma: Rare, primarily parotid, any age, large granular basophilic cells in acinar formations. Can be slow-growing and initially seem benign.
- Carcinoma Ex-Pleomorphic Adenoma: Develops in a pre-existing pleomorphic adenoma after a long period. Characterized by a malignant component growing from a benign tumor. Increased risk of local recurrence.
Additional Notes
- Clinical Features: Swelling (slow or fast), pain (often absent in benign tumors), presence of ulcer or neural signs (important for malignant tumors).
- Histological Features: Important for diagnosis. Differentiates benign from malignant based on cell types, arrangement, presence of capsule, invasion into surrounding tissue.
- Prognosis: Can range from poor to good, depending on type, location, spread to lymph nodes, etc. Local recurrence in tumors with capsule deficiency is common.
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Description
Test your knowledge on various salivary gland tumors, both benign and malignant. This quiz covers key characteristics, common types, and significant clinical features. Understand the nuances between adenomas and carcinomas and their presentations.
