BACKGROUND: Microcystic meningioma (MM) is a World Health Organization grade I tumor that is rare in the pediatric population. Meningiomas account for approximately 2-4 % of all childhood central nervous system (CNS) tumors compared to approximately 20 % of all adult CNS tumors. The authors present one of the few confirmed cases of microcystic meningioma in a child and discuss the characteristic radiographic appearance and histological findings. HISTORY: We report the case of an 11-year-old boy who presented with first-time seizure and imaging consistent with brain tumor. There was significant vasogenic edema within the entire right hemisphere, disproportionate to the size of the falcine-based tumor. Histopathological analysis revealed the microcystic subtype of meningioma. DISCUSSION: We review the radiographic characteristics, histopathological findings, and reported pediatric cases of MM in conjunction with our case. CONCLUSION: MM has distinct radiographic characteristics (variable enhancement, lack of a dural tail, and disproportionate vasogenic edema) that can be misinterpreted in the pediatric population, suggesting a more aggressive tumor.
BACKGROUND:Microcystic meningioma (MM) is a World Health Organization grade I tumor that is rare in the pediatric population. Meningiomas account for approximately 2-4 % of all childhood central nervous system (CNS) tumors compared to approximately 20 % of all adult CNS tumors. The authors present one of the few confirmed cases of microcystic meningioma in a child and discuss the characteristic radiographic appearance and histological findings. HISTORY: We report the case of an 11-year-old boy who presented with first-time seizure and imaging consistent with brain tumor. There was significant vasogenic edema within the entire right hemisphere, disproportionate to the size of the falcine-based tumor. Histopathological analysis revealed the microcystic subtype of meningioma. DISCUSSION: We review the radiographic characteristics, histopathological findings, and reported pediatric cases of MM in conjunction with our case. CONCLUSION: MM has distinct radiographic characteristics (variable enhancement, lack of a dural tail, and disproportionate vasogenic edema) that can be misinterpreted in the pediatric population, suggesting a more aggressive tumor.
Authors: Rishi S Kotecha; Elaine M Pascoe; Elisabeth J Rushing; Lucy B Rorke-Adams; Ted Zwerdling; Xing Gao; Xin Li; Stephanie Greene; Abbas Amirjamshidi; Seung-Ki Kim; Marco A Lima; Po-Cheng Hung; Fayçal Lakhdar; Nirav Mehta; Yuguang Liu; B Indira Devi; B Jayanand Sudhir; Morten Lund-Johansen; Flemming Gjerris; Catherine H Cole; Nicholas G Gottardo Journal: Lancet Oncol Date: 2011-11-15 Impact factor: 41.316
Authors: S Grand; B M Pasquier; D M Hoffmann; A Krainik; A Ashraf; I M Tropres; K Dillworth; J F Le Bas Journal: J Neuroradiol Date: 2009-09-23 Impact factor: 3.447
Authors: Nikki B Thuijs; Bernard M J Uitdehaag; Willem J R Van Ouwerkerk; Paul van der Valk; W Peter Vandertop; Saskia M Peerdeman Journal: Childs Nerv Syst Date: 2012-04-29 Impact factor: 1.475