Long term outcomes and predictors of recurrence in central neurocytomas: a 35-year multi-institutional experience.
AI interpretation is pending for this paper.
Open original publication →What the AI sees
Not AI summarized yet.
Research significance
Pending deeper interpretation.
Source abstract
INTRODUCTION: Central neurocytomas (CNs) are rare, WHO grade 2 brain tumors that have relatively high recurrence rates following resection. The present collaboration between Northwestern University and the Mayo Clinic describes long-term outcomes of CN as it relates to potential prognostic variables that entail recurrence risk, such as RT timing, tumor proliferation index (Ki-67), and age at diagnosis. METHODS: Patients established between 1990 and 2025 with a tissue diagnosis of CN were reviewed. Recurrence free survival (RFS) and overall survival (OS) were calculated according to the Kaplan Meier-method. Multivariate cox regression analysis was performed with pre-planned variables. RESULTS: Fifty-one patients with CN with a median age of 26 years and 9.7 years median follow-up were included. OS at 10 years for the cohort was 94%. Without adjuvant RT, 5-year RFS for post-GTR was 61% versus 46% for post-STR (P value = 0.18). Multivariate analysis found omission of adjuvant RT (HR: 9.0, P = 0.003), subtotal resection (HR:5.7, P = 0.017), younger age at diagnosis (HR3.1, P = 0.002), and higher Ki-67 (HR 1.13, P = 0.017) were associated with worse RFS. Salvage RT after first recurrence (n = 17) had a 5-year RFS of 83%, with a median follow-up of 4.8 years. CONCLUSIONS: We report one of the largest and most comprehensive cohorts of CN with long-term follow-up. Contrary to previous reports, recurrences were frequent after GTR. Higher Ki-67 and age at diagnosis were associated with worse RFS in our cohort. Salvage RT at recurrence achieved durable long-term tumor control, and 10-year mortality was low.