Salivary Gland Neoplasms

Question 1

What is the epidemiology for Salivary Gland Neoplasms?

Answer 1

• Salivary Gland Neoplasms consists of 3% of all head and neck neoplasms
• UNCOMMON, not rare
• slight female predilection
• majority arise from adulthood
• UNKNOWN ETIOLOGY

Question 2

What is the overall % of Salivary Gland Neoplasms benign & malignant?

Answer 2

• PAROTID - 64-80%
• Submandibular - 6-11%
• Sublingual - <1%
• MINOR - 9-23%

Question 3

What are the most common locations in MINOR Gland Neoplasms?

Answer 3

• PALATE - 50%
• Lips - 20%
• Buccal Mucosa - 15%

Question 4

What are the BENIGN Salivary Gland Neoplasms?

Answer 4

• Pleiomorphic Adenoma (“BENIGN MIXED TUMOR”)
• Papillary cystadenoma lyphomatosum “WHARTHIN TUMOR”
• Monomorphic Adneoma
  
  • Canalicular adenoma

Question 5

What are the MALIGNANT Salivary Gland Neoplasms?

Answer 5

• Mucoepidermoid Carcinoma (in children)
• Polymorphous low-grade adenocarcinoma (PLGA)
• Adenoid cystic carcinoma
• Acinic cell carcinoma
• Carcinoma ex-pleomorphic adenoma

Question 6

What is the prevalence of MALIGNANCY in salivary glands?

Answer 6

• Parotid - 15-32%
• Submandibular - 37-45%
• SUBLINGUAL - 70-90%
• Minor - 45-50%

Question 7

What is the prevalence of MALIGNANCY in MINOR salivary glands?

Answer 7

• Palate- 45%
• Upper Lip - 20%
• Lower lip - 60%
• Buccal Mucosa - 50%
• RETROMOLAR REGION - 90%
• TONGUE - 90%