Non-T Non-B CALLA Positive Childhood Acute Lymphoblastic Leukemia

**Semantic type:** Neoplastic Process

**Definition:** A non-T, non-B, acute lymphoblastic leukemia in which the lymphoblasts are positive for the common acute lymphoblastic leukemia antigen (CALLA) occurring in children.

**Synonyms:** - Non-T Non-B CALLA Positive Acute Lymphoblastic Leukemia