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Management of Malignant Salivary Gland Tumors: A 20-Year SEER Database Analysis
Christopher Stewart1, J B Eyring2, Braxton Felix1
1School of Medicine, Joplin, USA.
Objective:
Malignant salivary gland tumors represent a heterogeneous group of neoplasms with variable management. This study evaluated trends in therapeutic approaches to these cancers to inform evidence-based, personalized care and optimize patient outcomes.
Study Design:
Retrospective cohort study.
Setting:
Population-based analysis using the Surveillance, Epidemiology, and End Results (SEER) database.
Methods:
Cases of malignant salivary gland tumors diagnosed between 2000 and 2021 were categorized by treatment modality and stage at diagnosis. Trends over time were assessed using JoinPoint segmented log-linear regression.
Results:
A total of 24,029 patients were included. Surgery alone (36.3%) and surgery with adjuvant radiation (36.5%) comprised the majority of treatments. Chemotherapy alone increased significantly over time (annual percent change [APC] +5.81%; 95% CI, 3.46-9.24; P < .05), though it remained infrequently used. Combined modalities including surgery, chemotherapy, and radiation also showed modest growth over the study period. Stage analysis revealed increasing proportions of localized and regional tumors and a decline in distant disease.
Conclusion:
Surgery remains the cornerstone of malignant salivary gland tumor management, but use of combined treatment approaches is rising, likely reflecting advances in systemic therapies and radiation techniques. Awareness of these trends is critical for guiding multidisciplinary, personalized care. Future studies integrating clinical outcomes and histologic subtype are warranted to clarify the role of expanding systemic and combined modalities.
