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Primary and radiation induced skull base osteosarcoma: a systematic review of clinical features and treatment outcomes

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Abstract

Purpose

We aim to systematically review and summarize the demographics, clinical features, management strategies, and clinical outcomes of primary and radiation-induced skull-base osteosarcoma (SBO).

Methods

PubMed, Scopus, and Cochrane databases were used to identify relevant articles. Papers including SBO cases and sufficient clinical outcome data were included. A comprehensive clinical characteristic review and survival analysis were also conducted.

Results

Forty-one studies describing 67 patients were included. The median age was 31 years (male = 59.7%). The middle skull-base was most commonly involved (52.7%), followed by anterior (34.5%) and posterior (12.7%) skull-base. Headache (27%), exophthalmos (18%), and diplopia (10%) were common presenting symptoms. Sixty-eight percent of patients had primary SBO, while 25% had radiation-induced SBO. Surgery was the main treatment modality in 89% of cases. Chemotherapy was administered in 65.7% and radiotherapy in 50%. Median progression-free survival (PFS) was 12 months, and the overall 5-year survival was 22%. The five-year survival rates of radiation-induced SBO and primary SBO were 39% and 16%, respectively (P < 0.05).

Conclusion

SBO is a malignant disease with poor survival outcomes. Surgical resection is the primary management modality, in conjunction with chemotherapy and radiotherapy. Radiation-induced SBO has a superior survival outcome as compared to its primary counterpart. Complete surgical resection showed a statistically insignificant survival benefit as compared to partial resection.

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All authors contributed to the study conception and design. The study idea was proposed by [ASH] and [TYEA]. The literature search, articles screen, and data extraction were perfumed by [OBA], [ASH], [NSS], and [TYEA]. Data analysis was performed by [OBA]. The first draft of the manuscript was drafted by [OBA, ASH, NSS]. All authors critically revised and edited the first draft and commented on all versions of the manuscript. The project was supervised by [TYEA] and [AAC-G]. All authors read and approved the final manuscript.

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Correspondence to Tarek Y. El Ahmadieh.

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Bin Alamer, O., Haider, A.S., Haider, M. et al. Primary and radiation induced skull base osteosarcoma: a systematic review of clinical features and treatment outcomes. J Neurooncol 153, 183–202 (2021). https://doi.org/10.1007/s11060-021-03757-z

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