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Background: There is limited literature on outcomes after surgical treatment of giant craniopharyngiomas in adult and pediatric patients.
Methods: A retrospective review of 159 patients undergoing surgery for craniopharyngiomas at a single institution was performed. Patients with giant craniopharyngiomas (maximum dimension ≥4.5 cm) were compared with nongiant tumors in terms of various clinical and radiological parameters and long-term surgical outcomes. Extent of resection was determined by postoperative magnetic resonance imaging. Factors associated with post-treatment obesity were also analyzed.
Results: Giant craniopharyngiomas (n = 66) were characterized by higher rates of childhood presentation, visual impairment, neurological deficits, multicompartmental involvement, and hydrocephalus as compared with nongiant tumors (n = 139). Giant tumors also were less likely to undergo transsphenoidal resection and were associated with a higher rate of postoperative neurological morbidity. There were no significant differences between the 2 groups in terms of extent of resection, use of postoperative radiation therapy, and long-term endocrinological outcomes. Overall recurrence rates over a mean follow-up period of 4.1 years were similar between giant and nongiant tumors; however, recurrences after presumed gross total resection/near total resection were significantly higher in the former subgroup versus the latter (39.4% vs. 18.4%; P = 0.044). Risk factors for post-treatment obesity in giant craniopharyngiomas included adult age (P = 0.001), preoperative obesity (P = 0.003), and hypothalamic involvement (P = 0.012).
Conclusion: Gross total resection/near total resection of giant craniopharyngiomas can be achieved at rates comparable to nongiant tumors. However, there remains a greater risk of postoperative neurological morbidity. Radiation therapy mitigates the risk of recurrence on long-term follow-up.
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| http://dx.doi.org/10.1016/j.wneu.2022.03.073 | DOI Listing |
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