Huge Atypical Meningioma in a 21-Month-Old Girl: A Case Report.

Meningiomas are the most common intracranial tumors, but it's uncommon in the pediatric and adolescent populations. Pediatric meningiomas differ from adult meningiomas by a higher rate of malignant change, atypical location, male predominance and a higher recurrence rate. The most common presenting symptoms in supratentorial pediatric meningiomas are the signs and symptoms of high intracranial pressure (headache, vomiting, and nausea) and seizures. The most common presenting symptoms in infratentorial pediatric meningiomas are signs of cranial nerve deficits. Magnetic resonance imaging of the brain is the gold standard modality for diagnosis. The mainstay of management is surgical resection with the aim of gross total resection, as it is the strongest independent prognostic factor. In this report, we describe an extremely rare case of gradual onset, progressive motor developmental delay in a 21-month-old girl with a huge right frontotemporal meningioma that was treated with surgical resection that, to the best of our knowledge, is the youngest in the literature.