Ovarian tumors most frequently occur in girls aged 15 to 19 years.

In less severe cases, tumors may occur once or twice a year.

The tumors can occur from childhood, but generally peak at midlife.

The tumors can be large and occur anywhere on the trunk.

This tumor occurs most frequently in middle-aged and elderly males.

There may be a developmental window in which most rhabdoid tumors occur.

These tumors most commonly occur in adults with the mean age being 31.5.

The tumors usually occur in older individuals (mean age 64 years old).

Neuroepithelial tumors of the kidney are rare and usually occur in young adults.

While the tumour can occur at any age, it occurs most often in young adults.