Hyperdiploid B Lymphoblastic Leukemia/Lymphoma

**Semantic type:** Neoplastic Process

**Definition:** A precursor lymphoid neoplasm composed of B lymphoblasts which contain more than 50 and usually less than 66 chromosomes. It has a favorable clinical outcome.

**Synonyms:** - B Lymphoblastic Leukemia/Lymphoma with High Hyperdiploidy - B Lymphoblastic Leukemia/Lymphoma with Hyperdiploidy - B lymphoblastic leukemia/lymphoma with hyperdiploidy - B-Lymphoblastic Leukemia/Lymphoma with High Hyperdiploidy - B-Lymphoblastic Leukemia/Lymphoma with Hyperdiploidy - High Hyperdiploidy