Stage I T Lymphoblastic Leukemia/Lymphoma

**Semantic type:** Neoplastic Process

**Definition:** Ann Arbor Classification: Stage I: Involvement of a single lymph node region (I); or localized involvement of a single extralymphatic organ or site in the absence of any lymph node involvement (IE) (Rare in Hodgkin lymphoma).

**Synonyms:** - Precursor T-Lymphoblastic Lymphoma/Leukemia Stage I - Stage I Precursor T-Lymphoblastic Lymphoma/Leukemia - Stage I T-Lymphoblastic Leukemia/Lymphoma