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Updated: Aug 17, 2026

Comprehensive Protocol to Sample and Process Bone Marrow for Measuring Measurable Residual Disease and Leukemic Stem Cells in Acute Myeloid Leukemia
Published on: March 5, 2018
Insights
A 4-year-old boy was diagnosed with lymphoblastic leukemia, and his brother developed myeloblastic leukemia three years later. Despite the brother
Area of Science:
- Hematology
- Oncology
- Genetics
Background:
- Leukemia is a cancer of the blood or bone marrow.
- Leukemias are broadly divided into acute and chronic, and into lymphoid or myeloid types.
Observation:
- A 4-year-old boy was diagnosed with acute lymphoblastic leukemia (ALL).
- Three years later, his 20-year-old brother was diagnosed with acute myeloid leukemia (AML).
Findings:
- The younger brother achieved complete remission and remains well over six years later.
- The older brother did not respond to treatment and died within five months.
- No constitutional predisposition to leukemia was identified in the parents or remaining siblings.
Implications:
- This case highlights the occurrence of distinct leukemias in closely related individuals.
- Further research may be needed to explore potential genetic or environmental factors contributing to secondary leukemia.
- Understanding familial leukemia patterns is crucial for early detection and personalized treatment strategies.
Abstract:
Unequivocal lymphoblastic leukaemia in a 4-year-old boy was followed 3 years later by equally unequivocal myeloblastic leukaemia in his 20-year-old brother. The boy achieved complete remission and remains well more than 6 years later whereas his brother failed to respond to treatment and died after 5 months. The parents and 3 remaining siblings showed no recognized features suggesting a constitutional predisposition to leukaemia despite thorough investigation.
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