Hyperdiploid B Acute Lymphoblastic Leukemia

**Semantic type:** Neoplastic Process

**Definition:** A B-cell acute leukemia characterized by the presence of lymphoblasts which contain more than 50 and usually less than 66 chromosomes. It is commonly seen in children and rarely in adults. It has a favorable clinical outcome.

**Synonyms:** - B Acute Lymphoblastic Leukemia with High Hyperdiploidy - B-Acute Lymphoblastic Leukemia with High Hyperdiploidy - Hyperdiploid ALL - Hyperdiploid Acute Lymphoblastic Leukemia - Hyperdiploid B-Acute Lymphoblastic Leukemia - Hyperdiploid B-Cell Acute Lymphoblastic Leukemia