A1 Refereed original research article in a scientific journal
Radiation-Induced Meningiomas After Childhood Brain Tumor: A Magnetic Resonance Imaging Screening Study
Authors: Remes TM, Suo-Palosaari MH, Heikkilä VP, Sutela AK, Koskenkorva PKT, Toiviainen-Salo SM, Porra L, Arikoski PM, Lähteenmäki PM, Pokka TML, Arola MO, Riikonen VP, Sirkiä KH, Lönnqvist TRI, Rantala HMJ, Ojaniemi MK, Harila-Saari AH, Harila-Saari AH
Publisher: MARY ANN LIEBERT, INC
Publication year: 2019
Journal: Journal of Adolescent and Young Adult Oncology
Journal name in source: JOURNAL OF ADOLESCENT AND YOUNG ADULT ONCOLOGY
Journal acronym: J ADOLESC YOUNG ADUL
Volume: 8
Issue: 5
First page : 593
Last page: 601
Number of pages: 9
ISSN: 2156-5333
eISSN: 2156-535X
DOI: https://doi.org/10.1089/jayao.2019.0010
Purpose: Childhood brain tumors (CBTs) and their treatment increase the risk of secondary neoplasms (SNs). We studied the incidence of secondary craniospinal tumors with magnetic resonance imaging (MRI) screening in a national cohort of survivors of CBT treated with radiotherapy, and we analyzed the Finnish Cancer Registry (FCR) data on SNs in survivors of CBT with radiotherapy registered as a part of the primary tumor treatment. Methods: A total of 73 survivors of CBT participated in the MRI study (mean follow-up of 19 +/- 6.2 years). The incidence of SNs in a cohort of CBT patients (N = 569) was retrieved from the FCR (mean follow-up of 11 +/- 12.9 years). Brain tumors were diagnosed at age <= 16 years between the years 1970 and 2008 in the clinical study and the years 1963 and 2010 in the FCR population. Results: Secondary brain tumors, meningiomas in all and schwannoma in one, were found in 6 of the 73 (8.2%) survivors with a mean of 23 +/- 4.3 years after the diagnosis of the primary tumor. The cumulative incidence was 10.2% (95% confidence interval [CI] 3.9-25.1) in 25 years of follow-up. In the FCR data, the 25-year cumulative incidence of SNs was 2.4% (95% CI 1.3-4.1); only two brain tumors, no meningiomas, were registered. Conclusion: Survivors of CBT treated with radiotherapy have a high incidence of meningiomas, which are rarely registered in the FCR.
