Ann Arbor Stage I Adult Non-Hodgkin 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).

**Synonyms:** - Stage I Adult Non-Hodgkin Lymphoma - Stage I Adult Non-Hodgkin's Lymphoma - Stage I Non-Hodgkin Lymphoma - stage I adult non-Hodgkin lymphoma