Granulocyte colony-stimulating factor-induced hypersensitivity reaction with leukocytosis in a pediatric germ cell tumor patient: a case report - Report - MDSpire

Granulocyte colony-stimulating factor-induced hypersensitivity reaction with leukocytosis in a pediatric germ cell tumor patient: a case report

  • By

  • Yuhui Tan

  • Chaoyong Wei

  • Wenyan Xiao

  • Yilan Fu

  • Xi Chen

  • Yanxiang Tang

  • Changli Tang

  • June 8, 2026

  • 0 min

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Clinical Report: Hypersensitivity Reaction and Leukocytosis Induced by G-CSF

Overview

This report details a case of a 14-year-old female with a germ cell tumor who developed systemic hypersensitivity reactions and marked leukocytosis following the administration of granulocyte colony-stimulating factor (G-CSF). The findings underscore the need for clinical vigilance regarding G-CSF administration in pediatric patients.

Background

Chemotherapy-induced bone marrow suppression significantly increases the risk of febrile neutropenia in pediatric cancer patients. Granulocyte colony-stimulating factor (G-CSF) is widely used for prophylaxis and treatment of febrile neutropenia, but rare adverse events, including hypersensitivity reactions, can occur. Understanding these reactions is crucial for optimizing patient safety and treatment outcomes.

Data Highlights

No numerical data available.

Key Findings

Verify and ensure that all findings are consistent with the case presentation, especially regarding eosinophilia.

Clinical Implications

Healthcare providers should maintain a high index of suspicion for hypersensitivity reactions in pediatric patients receiving G-CSF, especially after previous tolerability. Close monitoring and readiness to intervene are essential when administering G-CSF, particularly in those with a history of allergies or adverse reactions.

Conclusion

Reinforce the call for research on the safety of efbemalenograstim alfa-vuxw in pediatric patients.

Related Resources & Content

  1. Frontiers in Pediatrics, 2026 -- Granulocyte Colony-Stimulating Factor-Induced Hypersensitivity Reaction with Leukocytosis in a Pediatric Germ Cell Tumor Patient: A Case Report
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  6. Guideline for the Management of Fever and Neutropenia in Pediatric Patients With Cancer and Hematopoietic Cell Transplantation Recipients: 2023 Update
  7. WBC Growth Factors: ASCO Guideline Update | Journal of Clinical Oncology
  8. Frontiers | Granulocyte Colony-Stimulating Factor-Induced Hypersensitivity Reaction with Leukocytosis in a Pediatric Germ Cell Tumor Patient: A Case Report

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