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E1405. Cystic Spinal Lesions: Spectrum of Imaging Findings
Authors
  1. Willem Calderon; Vall d´Hebron University Hospital
  2. Paulo Puac; University of Ottawa
  3. Carlos Torres; University of Ottawa
  4. Mauricio Castillo; University of North Carolina
  5. Alex Rovira; Vall d´Hebron University Hospital
Background
There are multiple types of benign and malignant cystic spinal lesions. Given their wide range of etiologies, an exact diagnosis may be challenging, however distinct imaging features may be used in order to narrow the differential diagnosis and/or establish the exact diagnosis. In addition, spinal cysts can be divided in: intramedullary, intradural extramedullary, or extradural, depending on their location, which could be useful for diagnostic purposes as well. Magnetic resonance imaging (MRI) is the imaging method of choice to identify and characterize spinal cysts, and ultrasound (US) is often used as the initial imaging modality in pediatric patients. In this educational exhibit, we will review the key imaging features of spinal cysts, based on their location, using multiple imaging modalities.

Educational Goals / Teaching Points
The pathophysiology, clinical presentation, and key imaging findings of cystic spinal lesions will be reviewed. The lesions will be approached based on their location and etiology (i.e: neoplastic, congenital, degenerative, infectious, post-traumatic, and postsurgical).

Key Anatomic/Physiologic Issues and Imaging Findings/Techniques
Discussion of the most important indications to image the spine and of the key imaging findings of cystic spinal lesions in different imaging modalities will be performed.

Conclusion
Spinal cysts demonstrate different imaging features that vary depending on their location and etiology. Early detection, localization, and characterization of these lesions are key in order to decide patient management. Radiologists should be familiar with the common and infrequent types of cysts that can involve the spine, in order to guide further work-up and/or management.