Late Relapse of Acute Lymphoblastic Leukemia

**Semantic type:** Finding

**Definition:** Clinical and/or laboratory evidence of reemergence of acute lymphoblastic leukemia greater than or equal to 18 months (extramedullary) or 36 months (marrow) from diagnosis.

**Synonyms:** - Late Recurrence of ALL - Late Recurrence of ALL - Late Recurrence of Acute Lymphoblastic Leukemia - Late Recurrence of Acute Lymphoblastic Leukemia - Late Relapse of ALL - Late Relapse of ALL