Table 1.

Frequency of salivary gland cancer by histologic type

Histologic Type	Frequency of Occurrence	Distribution
Mucoepidermoid carcinoma	34%	Most common malignant parotid gland tumor, 40-50% of cases
Adenoid cystic carcinoma	22%	Most frequent in palate and submaxillary gland
Adenocarcinoma	18%	Accounts for 10% major and 33% of minor salivary gland malignant tumors
Malignant mixed tumor	13%
Acinic cell carcinoma	7%	Accounts for 10% of malignant parotid gland tumors
Squamous cell carcinoma	4%	Occurs in 5-10% of parotid and submaxillary gland malignant tumors
Other	< 3%