title: Intraventricular Undifferentiated Pleomorphic Sarcoma: A Case Report.
abstract: Undifferentiated pleomorphic sarcoma is a histologic diagnosis based on cell morphology. These tumors are found throughout the body. They are rarely found in the central nervous system and almost never occur as a primary intraventricular tumor. We present the unusual case of a 68-year-old woman with an intraventricular undifferentiated pleomorphic sarcoma. We go on to discuss the clinical presentation, radiographic characteristics, and management paradigm for these rare lesions. Our patient presented with acute confusion, inability to balance a checkbook, and gait imbalance. CT and MRI demonstrated a 4 x 3.6 x 3.6 cm enhancing lesion in the left lateral ventricle abutting the foramen of Monro. Pathology revealed an undifferentiated pleomorphic sarcoma.
authors.affiliation: Department of Neurosurgery, Penn State Hershey Medical Center.
authors.forename: Emily P
authors.initials: EP
authors.lastname: Sieg
authors.affiliation: Medical Student, Penn State College of Medicine.
authors.forename: Hayk
authors.initials: H
authors.lastname: Stepanyan
authors.affiliation: Department of Neurosurgery, Penn State Hershey Medical Center.
authors.forename: Russell
authors.initials: R
authors.lastname: Payne
authors.affiliation: Pathology, Penn State Hershey Medical Center.
authors.forename: Elizabeth
authors.initials: E
authors.lastname: Frauenhoffer
authors.affiliation: Pathology, Penn State Hershey Medical Center.
authors.forename: Charles S
authors.initials: CS
authors.lastname: Specht
authors.affiliation: Department of Neurosurgery, Penn State Hershey Medical Center.
authors.forename: Sara
authors.initials: S
authors.lastname: Langan
authors.affiliation: Department of Neurosurgery, Penn State Hershey Medical Center.
authors.forename: Elias
authors.initials: E
authors.lastname: Rizk
keywords: cranial spindle cell tumor; intraventricular mass; spindle cell tumor; undifferentiated pleomorphic sarcoma