Diffuse Large B-Cell Lymphoma, Not Otherwise Specified by Gene Expression Profile

**Semantic type:** Neoplastic Process

**Definition:** A header term that includes the following diffuse large B-cell lymphoma subtypes by gene expression profiling: activated B-cell-like diffuse large B-cell lymphoma, germinal center B-cell-like diffuse large B-cell lymphoma, and type 3 diffuse large B-cell lymphoma.