Ann Arbor Stage III Mature T- and NK-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:** - Peripheral T-Cell Lymphoma Stage III - Stage III Mature T- and NK-Cell Lymphoma - Stage III Peripheral T-cell Lymphoma