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Distribution of benign and malignant lesions in different age groups.
| Age group | % Benign | % Malignant |
|---|---|---|
| < 40 | 63% (n = 17/27) | 37% (n = 10/27)* |
| 40–69 | 57.6% (n = 179/331) | 42.4% (n = 132/311) |
| ≥ 70 | 23.1% (n = 12/52) | 76.9% (n = 40/52) |
*All malignant cases were age 30–39 in this group.
