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Rates and characteristics of radiographically detected intracerebral cavernous malformations after cranial radiation therapy in pediatric cancer patients

Rates and characteristics of radiographically detected intracerebral cavernous malformations after cranial radiation therapy in pediatric cancer patients

Journal of Child Neurology 30(7): 842-849

Rates and characteristics of intracerebral cavernous malformations after cranial radiation therapy remain poorly understood. Herein we report on intracerebral cavernous malformations detected on follow-up imaging in pediatric cancer patients who received cranial radiation therapy at age ≤18 years from 1980 to 2009. Through chart reviews (n = 362) and phone interviews (n = 104) of a retrospective cohort, we identified 10 patients with intracerebral cavernous malformations. The median latency time for detection of intracerebral cavernous malformations after cranial radiation therapy was 12 years (range 1-24 years) at a median age of 21.4 years (interquartile range = 15-28). The cumulative incidence was 3% (95% confidence interval 1%-8%) at 10 years post cranial radiation therapy and 14% (95% confidence interval 7%-26%) at 15 years. Three patients underwent surgical resection. Two surgical specimens were pathologically similar to sporadically occurring intracerebral cavernous malformations; one was consistent with capillary telangiectasia. Intracerebral cavernous malformations are common after cranial radiation therapy and can show a spectrum of histologic features.

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Accession: 055372343

Download citation: RISBibTeXText

PMID: 25122111

DOI: 10.1177/0883073814544364

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