Precursor Cells, B-Lymphoid

**Definition:** Lymphocyte progenitor cells that are restricted in their differentiation potential to the B lymphocyte lineage. The pro-B cell stage of B lymphocyte development precedes the pre-B cell stage.

**Tree numbers:** - A11.118.637.555.567.562.800 - A11.148.378.294.374 - A11.872.378.294.500

**Synonyms:** - Immature B Cell - B-Lymphoid Precursor Cell - Immature B-Lymphocyte - Transitional B-Cell - Transitional B-Lymphocyte - Transitional B-Lymphocytes - Immature B-Lymphocytes - Immature B-Cells - Transitional B-Cells - Immature B-Cell - B-Lymphoid Precursor Cells