Tumor shape as a prognostic factor for the growth of intracanalicular vestibular schwannoma: a long-term observational study
- Authors
- Lee, Se A.; Lee, Jae Ha; Hong, Hyun Sook; Lee, Jong Dae
- Issue Date
- Mar-2024
- Publisher
- SPRINGER
- Keywords
- Magnetic resonance imaging; Vestibular schwannoma; Tumor shape; Tumor growth
- Citation
- EUROPEAN ARCHIVES OF OTO-RHINO-LARYNGOLOGY
- Journal Title
- EUROPEAN ARCHIVES OF OTO-RHINO-LARYNGOLOGY
- URI
- https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/26095
- DOI
- 10.1007/s00405-024-08540-0
- ISSN
- 0937-4477
1434-4726
- Abstract
- PurposeTo evaluate the predictive factors of tumor growth in patients with vestibular schwannoma (VS) managed with the wait-and-scan approach. MethodsThe data of 31 patients diagnosed with intracanalicular VS and followed for > 5 years were retrospectively analyzed. VS was diagnosed according to MRI findings and tumor growth was monitored. Tumor growth was defined as an increase of 2 mm or more in the maximal tumor diameter. The association between the initial tumor size and shape and tumor growth was assessed. ResultsTumor growth was observed in 16 of 31 patients (51.6%) over a mean follow-up duration of 7.3 years. The initial tumor size was not statistically correlated with tumor growth. However, fusiform or cylindrical tumors exhibited higher growth rates than oval or round tumors. Additionally, a significant correlation was observed between cerebellopontine angle extension and tumor shape. ConclusionIn this study, 51.6% of the patients with intracanalicular VS who were managed with the wait-and-scan strategy over a follow-up period of > 5 years showed tumor growth. Tumor shape, especially fusiform or cylindrical shape, was found to be a significant predictor of tumor growth.
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Collections - College of Medicine > Department of Otorhinolaryngology > 1. Journal Articles
- College of Medicine > Department of Radiology > 1. Journal Articles
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