• YoonJong SeoJShttps://orcid.org/0000-0003-2331-1680Department of Pediatrics, Ajou University School of Medicine, Ajou University Hospital, Suwon, Korea., Cheol Hwan So, Hae Sang Lee, Jung Sub Lim, and Jin Soon Hwang.
• Department of Pediatrics, Ajou University School of Medicine, Ajou University Hospital, Suwon, Korea.
• J. Korean Med. Sci. 2018 Dec 17; 33 (51): e329.

BackgroundBrain magnetic resonance imaging (MRI) is routinely performed to identify brain lesions in girls with central precocious puberty (CPP). We aimed to investigate the prevalence and type of brain lesions among Korean girls with CPP and evaluate the need for routine brain MRI examinations.MethodsThis retrospective cross-sectional study evaluated data on 3,528 girls diagnosed with CPP from April 2003 to December 2016, and identified 317 girls who underwent sellar MRI. Exclusion criteria were patients with a known brain tumor or who did not undergo brain MRI due to refusal or the decision of the pediatric endocrinologist.ResultsNormal sellar MRI findings were observed in 291 of the 317 girls (91.8%). Incidental findings were observed in 26 girls (8.2%). None of the patients had pathological brain lesions.ConclusionThe prevalence of intracranial lesions among girls who were generally healthy and without neurological symptoms but diagnosed with CPP was lower than that previously reported. Furthermore, none of the identified lesions required treatment. It may be prudent to reconsider the routine use of brain MRI to screen all patients with CPP, especially if they are healthy and neurologically asymptomatic, and are girls aged 6-8 years.

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