Stage I Uterine Corpus Carcinoma or Carcinosarcoma by AJCC v7 Stage

**Semantic type:** Neoplastic Process

**Definition:** Stage I includes: I (T1, N0, M0); IA: (T1a, N0, M0); IB (T1b, N0, M0). T1: Tumor confined to corpus uteri. T1a: Tumor limited to the endometrium or invades less than one-half of the myometrium. T1b: Tumor invades one-half or more of the myometrium. N0: No regional lymph node metastasis. M0: No distant metastasis. This staging applies to carcinomas and carcinosarcomas. (AJCC 7th ed.)

**Synonyms:** - Stage I Uterine (including Endometrial) Cancer