Table 2. The median and mean ages (years) of the cases diagnosed with tumors and tumor-like lesions are categorized by organ systems.

Organ systems	Median* / Mean† age in years (range)
	Tumors	Tumor-like lesions	Total cases
Reproductive system	6.15/6.55 (1–10)	4/4.29 (1–9)	6/5.64 (1–10)
Integumentary system	8/7.51 (3–10.1)	11	9/7.74 (3–11)
Mammary gland	8/7.97 (5.9–10)	-	8/7.97 (5.9–10)
Gastrointestinal system	5.9	8.7	7.3 (5.9–8.7)
Urinary system	7.5 (4–11)	-	7.5 (4–11)
Respiratory system	5.1 (4.2–6)	-	5.1
Total	6.7/6.81 (1–11)	4.1/4.67 (1–11)	6/6.13 (1–11)

*Median age=middle age that separates the greater and lesser halves of the data set (second quartile). †Mean age=arithmetic average of the age. If ≤2 cases with known age, only one value was indicated.