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This year, I estimate that 450 to 500 children in the U.S. will be diagnosed with medulloblastoma, making it the most common malignant brain tumor in children. (8) Although medulloblastoma occurs in adults, the tumor is 10 times more common in children.
No sublingual gland tumor was identified. The benign mixed tumor was the most frequent tumor (65.6%), followed by Warthin's tumor (29.2%). Mucoepidermoid carcinoma was the most frequent malignant tumor (51.3%). The average annual age-adjusted incidence rate per 100,000 was 4.7 for benign tumors and 0.9 for malignant tumors. Incidence rates for both benign and malignant tumors increased with age until ages 65 to 74 years and then declined. Benign mixed tumors occurred more frequently in female patients, whereas Warthin's tumors and malignant tumors occurred more frequently in male patients (P < 0.05). Warthin's tumor was rare in black patients (P < 0.001). We conclude that salivary gland tumors are an uncommon but epidemiologically diverse group of tumors.