Related Experiment Videos
Neuroblastoma presenting as acute monoblastic leukemia
J E Boyd1, R T Parmley, A M Langevin
1Department of Pediatrics, University of Texas Health Science Center at San Antonio, USA.
Journal of Pediatric Hematology/Oncology
|May 1, 1996
Summary
Neuroblastoma can mimic acute leukemia, leading to misdiagnosis even with advanced tests. This case highlights the importance of considering neuroblastoma in children with suspected leukemia.
Area of Science:
- Pediatric Oncology
- Hematologic Malignancies
- Diagnostic Challenges
Background:
- Acute monoblastic leukemia (FAB M5A, AMoL) is a rare subtype of acute myeloid leukemia.
- Neuroblastoma is a common pediatric cancer originating from nerve tissue.
Observation:
- A 5-year-old boy initially diagnosed with AMoL presented with circulating blasts and bone marrow findings consistent with leukemia.
- Despite initial AMoL therapy failure and concerning blast morphology, further investigations revealed neuroblastoma.
Findings:
- Elevated urinary homovanillic acid (HVA) and vanillylmandelic acid (VMA), along with N-myc amplification, confirmed neuroblastoma.
- Abdominal CT identified a left adrenal mass, characteristic of neuroblastoma.
Implications:
- This case underscores the potential for neuroblastoma to be misdiagnosed as acute leukemia, even with comprehensive diagnostic methods.
- Review of similar cases indicates a high rate of misdiagnosis, with neuroblastoma often identified only postmortem.