Granulocyte-Stimulating Factor-Induced Bone Marrow Reconversion Simulating Neuroblastoma Metastases on MRI: Case
Radiology Case Reports
|June 16, 2016
Summary
Granulocyte colony-stimulating factor (GCSF) can mimic bone marrow metastases on MRI scans. This case highlights GCSF-induced marrow reconversion presenting as metaphyseal bands, a previously unreported finding.
Area of Science:
- Radiology
- Pediatric Oncology
- Hematology
Background:
- Granulocyte colony-stimulating factor (GCSF) is used in chemotherapy to stimulate white blood cell production.
- GCSF can cause bone marrow changes that may be mistaken for metastatic disease on MRI.
- Previous reports focused on GCSF effects in children with musculoskeletal malignancies.
Observation:
- A case of GCSF-induced marrow reconversion was observed in a patient undergoing cancer treatment.
- The reconversion mimicked neuroblastoma metastases on Magnetic Resonance (MR) imaging.
- Intense abnormal signal in metaphyseal bands was a unique finding in this case.
Findings:
- GCSF-induced marrow reconversion can simulate metastatic disease on MR imaging.
- Metaphyseal bands of intense abnormal signal are a newly described MRI finding associated with GCSF.
- This presentation can complicate diagnostic interpretation in pediatric oncology.
Implications:
- Radiologists and oncologists must be aware of GCSF effects to avoid misdiagnosis.
- Recognition of these imaging patterns is crucial for accurate staging and treatment planning.
- Further research may elucidate the specific mechanisms behind GCSF-induced marrow reconversion patterns.


