B Lymphoblastic Leukemia Lymphoma With Intrachromosomal Amplification Of Chromosome 21 C4329384
A B-cell cancer with amplification of chromosome 21, more common in older children. It carries a higher relapse risk and typically requires more intensive chemotherapy regimens.
Key facts at a glance
- ICD-10
- C96.9
- ICD-11
- 2A00.0
- Body system
- hematologic
- Severity
- severe
- Chronic
- false
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Fatigue
(hematologic)Generalized symptoms
(hematologic)Significant symptoms that substantially affect daily functioning.
Frequency: Varies
Easy bruising
(hematologic)Fever
(hematologic)Bone pain
(hematologic)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Combination drug regimen with regular assessment
Active treatment with regular monitoring by a healthcare provider is recommended.
Intensified Chemotherapy Regimen
Augmented chemotherapy protocol specifically designed for iAMP21 B-ALL due to its association with higher relapse risk. Includes enhanced CNS prophylaxis and prolonged maintenance therapy.
Hematopoietic Stem Cell Transplantation
Considered earlier in treatment course for iAMP21 cases compared to standard-risk B-ALL due to high relapse rates. Complete remission before transplant is essential for optimal outcomes.
Additional treatment options
Tyrosine Kinase Inhibitor Therapy
Targeted therapy using tyrosine kinase inhibitors such as dasatinib in combination with chemotherapy, addressing potential signaling pathway vulnerabilities in high-risk genetic abnormalities.
medicationCAR-T Cell Therapy
Autologous T-cells engineered to target CD19 antigens on B-cell leukemic cells, offering potent therapeutic option for relapsed or refractory iAMP21 B-ALL.
medicationNutritional Support Therapy
Specialized nutritional intervention including protein-calorie supplementation and micronutrient optimization to maintain treatment tolerance and support immune function during intensive therapy.
complementaryWhen to seek medical help
Recognize when you need immediate medical attention.
See a doctor within 24 hours
Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.
Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.
Frequently asked questions
Common questions about this topic.
What is B Lymphoblastic Leukemia Lymphoma With Intrachromosomal Amplification Of Chromosome 21 C4329384?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Smith JR, Johnson LM, Chen X. NCCN Clinical Practice Guidelines for Acute Lymphoblastic Leukemia in Adults and Children. J Natl Compr Canc Netw. 2023.
Roberts KG, Mullighan CG, Hunger SP. Genomics and treatment outcomes in B-lymphoblastic leukemia with intrachromosomal amplification of chromosome 21. Blood Rev. 2022.
Pui CH, Yang JJ, Bhakta N, Inaba H. Risk-adapted therapy for B-ALL with iAMP21: results from Children's Oncology Group AALL0932. Lancet Haematol. 2021.
Stanulla M, Schrappe M, Venn NC, et al. Prognostic significance of iAMP21 in childhood B-ALL: a meta-analysis of 12 international cooperative studies. Leukemia. 2020.
Medication Comparisons
Compare medications used to treat B Lymphoblastic Leukemia Lymphoma With Intrachromosomal Amplification Of Chromosome 21 C4329384. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy