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Bone involvement in childhood acute lymphoblastic leukaemia
G Wessels1, P B Hesseling, H P van der Merwe
1Department of Paedialrics and Child Health, University of Stellenbosch, Typgerberg, Republic of South Africa.
East African Medical Journal
|February 1, 1996
Summary
Radiological signs of bone involvement in acute lymphoblastic leukaemia (ALL) in children do not predict outcomes. This study found no association between skeletal changes and other risk factors in pediatric ALL patients.
Area of Science:
- Pediatric Oncology
- Radiology
- Hematology
Background:
- Acute lymphoblastic leukaemia (ALL) is a common childhood cancer.
- Skeletal involvement can occur in pediatric ALL, but its prognostic significance is unclear.
Purpose of the Study:
- To evaluate the prognostic significance of radiological signs of bony involvement in children diagnosed with ALL.
- To determine if skeletal changes correlate with other known risk factors or impact event-free survival.
Main Methods:
- Retrospective review of skeletal surveys from 52 children with ALL.
- Assessment for specific radiological signs of leukaemic bone involvement (radiolucent metaphyseal bands, osteolytic lesions, periosteal reaction).
- Comparison of skeletal involvement frequency with established risk factors and event-free survival using Kaplan-Meier analysis.
Main Results:
- Twenty-eight out of 52 children showed evidence of skeletal involvement.
- No significant difference in the frequency of known risk factors (age, mediastinal lymphadenopathy, splenomegaly, white cell count, CNS leukemia) was observed between children with and without skeletal involvement.
- Event-free survival did not differ significantly among children with no skeletal changes, any skeletal changes, or involvement at three or more sites.
Conclusions:
- Bone involvement in childhood ALL, based on radiological signs, is not associated with other adverse risk factors.
- Radiological evidence of bone involvement in pediatric ALL does not independently predict patient outcome or event-free survival.