title: "Drop" Metastases from an Operated Case of Intracranial Anaplastic Ependymoma Identified on Fluoro-2-deoxyglucose Positron Emission Tomography/Computed Tomography.
abstract: The seeding of tumor through cerebrospinal fluid (CSF) from primary intracranial tumors is very rare, often goes undetected, and is usually identified only on autopsy. CSF cytology along with magnetic resonance imaging constitutes the standard approach of diagnosing this grave condition. Use of fluoro-2-deoxyglucose positron emission tomography/computed tomography (PET/CT) in indentifying spinal metastases from primary intracranial malignancies is very limited and has been reported in patients with metastatic glioblastoma multiforme and medulloblastomas. We present a rare case of metastatic anaplastic ependymoma to show the potentially clinically utility of PET/CT in diagnosing leptomeningeal or the so-called "drop" metastases.
authors.affiliation: Department of Nuclear Medicine and Molecular Imaging, Tata Memorial Hospital, Mumbai, Maharashtra, India.
authors.forename: Piyush
authors.initials: P
authors.lastname: Chandra
authors.affiliation: Department of Nuclear Medicine and Molecular Imaging, Tata Memorial Hospital, Mumbai, Maharashtra, India.
authors.forename: Nilendu
authors.initials: N
authors.lastname: Purandare
authors.affiliation: Department of Nuclear Medicine and Molecular Imaging, Tata Memorial Hospital, Mumbai, Maharashtra, India.
authors.forename: Sneha
authors.initials: S
authors.lastname: Shah
authors.affiliation: Department of Nuclear Medicine and Molecular Imaging, Tata Memorial Hospital, Mumbai, Maharashtra, India.
authors.forename: Archi
authors.initials: A
authors.lastname: Agrawal
authors.affiliation: Department of Nuclear Medicine and Molecular Imaging, Tata Memorial Hospital, Mumbai, Maharashtra, India.
authors.forename: Venkatesh
authors.initials: V
authors.lastname: Rangarajan
keywords: Anaplastic; cerebrospinal fluid; ependymoma; fluoro-2-deoxyglucose; leptomeningeal; magnetic resonance; metastases; positron emission tomography/computed tomography; spinal