Jennifer Trinh MD, Presenter: Nothing to Disclose

Rajul Parimal Pandit MD, Abstract Co-Author: Nothing to Disclose

Mahesh Ramu Patel MD, Abstract Co-Author: Stockholder, Novartis AG

Intramedullary spinal cord tumors are rare and constitute 4-10% of all CNS tumors. Although they constitute only 20% of intraspinal tumors in the adult and 35% in the pediatric population, the majority are malignant. It is important to understand the characteristic imaging features of each intramedullary lesion that provide support towards a specific diagnosis. Additionally, one needs to be aware of lesions that mimic intramedullary spinal cord neoplasms. The purpose of this exhibit is to: 1. Describe the essential imaging features of common and rare intramedullary spinal cord lesions 2. Identify characteristic imaging features of each intramedullary spinal cord lesion 3. Recognize and differentiate mimics of intramedullary spinal cord neoplasms

Cases will be presented in quiz format. Key differential diagnostic points will be highlighted in the discussion of each case. The list of cases include: - Myxopapillary ependymoma - Schwannoma mimicking an ependymoma - Spinal syrinx hematoma mimicking an ependymoma - Astrocytoma - Hemangioblastoma - Meningioma - Metastasis - Brainstem glioma extending into the cervical spine - Nitrous oxide toxicity - Surfer’s myelopathy - Infectious myelitis from coccidioidomycosis - Intraspinal neurocysticerosis - Severe transverse myelitis - Spinal dural AVF

http://abstract.rsna.org/uploads/2014/14008879/14008879_ug9s.pdf

Trinh, J, Pandit, R, Patel, M, Common and Rare Intramedullary Spinal Cord Neoplasms and Their Mimics.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14008879.html