Neuroimaging clinics of North America
-
The breadth of tumors that can arise in the supratentorial brain in children is extensive. With the exception of those that result in seizures and the highly malignant histologies, supratentorial tumors may come to medical attention later compared with infratentorial tumors, as they are less commonly associated with ventricular obstruction. This article presents an overview of the neuroimaging characteristics of these entities, with particular attention to relevant features that may aid in narrowing the differential diagnosis, including correlation with demographics and clinical presentation.
-
Neuroimaging Clin. N. Am. · Feb 2017
ReviewImaging of the Sella and Parasellar Region in the Pediatric Population.
Masses in the sella and parasellar region comprise about 10% of all pediatric brain tumors but type and frequency differs from those in adults. Imaging is critical for diagnosis and characterization of these lesions. ⋯ The clinical presentation is often characteristic for lesion type and should be considered. This article summarizes the characteristic imaging features of the most frequent pediatric tumors and tumor-mimicking lesions in children in this region.
-
Extraparenchymal lesions of childhood include neoplastic and nonneoplastic entities. Lesions affecting children are different from the most common entities affecting adults. ⋯ MR imaging is the examination of choice for the evaluation of extraparenchymal lesions given greater sensitivity and anatomic detail. Syndromic associations should be considered, especially for unusual lesions in the pediatric age group such as meningioma and schwannoma.
-
Brain tumors can develop in the prenatal and neonatal time periods. Neuroimaging studies are crucial for the early detection of prenatal and neonatal brain tumors. Imaging allows for characterization of morphology, as well as the detection of hydrocephalus, local invasion, and distant spread. The imaging features of the more common neonatal brain tumors, including teratomas, choroid plexus tumors, ATRTs, and neoplasm mimics are described.
-
A review of pediatric pineal region tumors is provided with emphasis on advanced imaging techniques. The 3 major categories of pineal region tumors include germ cell tumors, pineal parenchymal tumors, and tumors arising from adjacent structures such as tectal astrocytomas. The clinical presentation, biochemical markers, and imaging of these types of tumors are reviewed.