Ann Arbor Stage III Primary Mediastinal Large B-Cell Lymphoma

**Semantic type:** Neoplastic Process

**Definition:** Ann Arbor Classification: Stage III: Involvement of lymph node regions on both sides of the diaphragm (III), which also may be accompanied by extralymphatic extension in association with adjacent lymph node involvement (IIIE) or by involvement of the spleen (IIIS) or both (IIIE,S).

**Synonyms:** - Ann Arbor Stage III Primary Mediastinal (Thymic) Large B-Cell Lymphoma - Primary Mediastinal Large B-Cell Lymphoma Stage III - Stage III Mediastinal (Thymic) Large B-Cell Lymphoma - Stage III Mediastinal (Thymic) Large B-Cell Lymphoma - Stage III Primary Mediastinal Large B-Cell Lymphoma