Pilocytic Astrocytoma: A Rare Presentation As Intraventricular Tumor
Overview
Affiliations
Background: Pilocytic astrocytoma (PA) is the most prevalent central nervous system (CNS) tumor in pediatric population and accounts for an approximate of 5-6% of all gliomas. This neoplasm can occur at all levels of the neuraxis, with majority (67%) arising in the cerebellum and optic pathway. PAs are World Health Organization Grade I tumors and are the most benign of all astrocytomas characterized by an excellent prognosis. Other differentials include subependymal giant cell astrocytoma (SEGA), ependymoma, meningioma, and low-grade gliomas such as pilocytic or diffuse astrocytoma; calcification is more commonly regarded as a feature of benign or slow-growing tumors.
Case Description: We present a case of a 17-year-old female presenting with an unusual cause of hydrocephalus, a rare case of a calcified pilocytic astrocytoma as an intraventricular tumor.
Conclusion: PA rarely presents as an intraventricular tumor and should be included in the differential diagnosis of a large mass with massive intratumoral calcification.
A 37-Year-Old Saudi Man with a Calcified Intraventricular Astrocytoma.
Al Saleem M, Alsafwani N, ElSharkawy T, Al-Suhibani S, Essawi W Am J Case Rep. 2020; 21:e928224.
PMID: 33249419 PMC: 7709083. DOI: 10.12659/AJCR.928224.