Refractory Mature B-Cell Non-Hodgkin Lymphoma

**Semantic type:** Neoplastic Process

**Definition:** A mature B-cell non-Hodgkin lymphoma that does not respond to treatment.

**Synonyms:** - Refractory Mature B-Cell Lymphoma - Refractory Mature B-Cell Neoplasm - Refractory Mature B-Cell Non-Hodgkin's Lymphoma