Central Nervous System (CNS) tumors are the most frequent cancer in paediatric population after leukemia and lymphomas,
constituting 20% of the overall tumors at this stage.
The most common location is posterior fossa and they are responsible of a high rate of childhood morbidity and mortality. The aim of this study is to review different types of posterior fossa tumors in childhood correlated with clinical symptoms,
radiologic features and pathological characteristics.
Central Nervous System (CNS) tumours are the most frequent cancer at paediatric age after lymphoma and leukemia.
Those tumours could be classified attending to its location in (Fig.1) : Supratentorial tumours: - Glial tumours: Low grade gliomas: Pylocitic astrocytoma (most frequent),
diffuse astrocytoma. High grade gliomas. - Neuronal tumors and mixed neuronal-glial tumours: Ganglioglioma. Desmoplastic infantile astrocytoma. Disembrioplastic neuroepithelial tumour. - Embryonal tumours:...
Findings and procedure details
Most of paediatric CNS tumours are infratentorial.
Most common ones are: pilocytic astrocytoma ,
medulloblastoma and ependymoma. Pilocytic astrocytoma (PA) PA (Fig.2)(Fig.3) is the most common cerebellar neoplasm and the most frequent glioma at paediatric age,
corresponding to 10% of the overall intracranial tumors at this stage. It used to develop under 20 years old (yo) with its maximum incidence between 5 and 15 yo without gender preference. The most common locations are: cerebellum (60%),...
Over 50% of CNS paediatric tumor are located in the posterior fossa,
excluding newborns and infants.The clinical presentation is due to raised intracranial pressure and possible compression of adjacent structures.Metastasis are rare to the contrary than in adults. Most frequent histological types are pylocitic astrocytoma,
medulloblastoma and ependymoma,
having each one their own radiologic features related to their pathological characteristcs. Knowing radiological features of the most...
From the archives of the AFIP: pilocytic astrocytoma: radiologic-pathologic correlation.
2004 Nov-Dec;24(6):1693-708. From the archives of the AFIP: medulloblastoma: a comprehensive review with radiologic-pathologic correlation.
2003 Nov-Dec;23(6):1613-37. Meduloblastoma pediátrico,
revisión y puesta al día.
Radiología 2011; 53:134-45 Imaging for Pediatricians: 100 Key Cases (Imaging for...