FIGO Stage I

**Semantic type:** Classification

**Definition:** A FIGO stage term that applies to gynecologic cancers. For cervical cancer, it refers to invasive cancer that is confined to the cervix; for endometrial cancer, it refers to cancer confined to the corpus uteri with no or less than one-half myometrial invasion (IA) or invasion of one-half or more of the myometrium (IB).

**Synonyms:** - FIGO Stage 1 - Stage I - Stage I