A<unk>  is a tumor having any histology characteristic of cells or<unk> s giving rise to the gonads. These<unk> s arise from the sex cord and stromal cells. The tumor may be derived from these<unk> s, or produce them. Although the tumor is composed of<unk><unk> , it is not necessarily located in an ovary or testicle. A<unk>  should not be confused with a urogenital neoplasm, though the two topics are often studied together. The embryology of the gonads is only indirectly related to the embryology of the external genitals and urinary system.
Gonadal tissue neoplasm
Pituitary disease
Endocrine gland neoplasm
Male accessory gland infection
Androgen-dependent condition
Hypothalamic disease
Urogenital neoplasm
Estrogen-dependent condition