Authors
Jiaqi Huang, Jiaxuan Liu, Qiaozhi Jiang, Renchuan Tao
Published in
Head & neck. Jun 12, 2026. Epub Jun 12, 2026.
Abstract
Allogeneic hematopoietic stem cell transplantation (allo-HSCT) is widely used to treat patients with malignant and nonmalignant hematologic disorders. The development of secondary malignancies is recognized, especially secondary oral squamous cell carcinoma (OSCC). This study aimed to evaluate and summarize the risk factors for secondary OSCC after allo-HSCT.
The search was conducted in 3 electronic databases for studies published up to May 2025. The quality of the identified studies was evaluated using the Newcastle-Ottawa Quality Assessment Scale for nonrandomized studies. The results were presented as risk ratios (RRs) with corresponding 95% confidence intervals (95% CI).
Overall, 15 924 patients from 16 studies were included in the systematic review. The results show that, among many factors involved in HSCT, chronic graft-versus-host disease (cGVHD; RR = 4.01, 95% CI = 1.91-8.39, p = 0.0002), malignant primary diagnosis (RR = 0.40, 95% CI = 0.19-0.84, p = 0.02), and intensity of conditioning myeloablative therapy (RR = 0.41, CI = 0.17-0.98, p = 0.04) were found to be risk factors for secondary OSCC after allo-HSCT.
Patients with cGVHD, with a primary diagnosis of malignant disease, or myeloablative intensity of conditioning are more likely to develop secondary OSCC. Our analysis of the literature shows patients after allo-HSCT that required close follow-up, especially examining oral mucosa regularly.
PMID:
42286936
Bibliographic data and abstract were imported from PubMed on 13 Jun 2026.
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