The authors describe some cases of epidural cysts, namely synovial, discal, ligamentum flavum cysts, and cysts secondary to interspinous bursitis, all of these conditions determining radicular, dural sac compression or spinal canal stenosis. Magnetic resonance imaging findings and localization of these entities are described.

Keywords: Magnetic resonance imaging, Spinal cord compression, Spinal cord disease

The use of signs or analogies for interpretation and description of medical images is an old and common practice among radiologists. Comparison of findings with animals, food or objects is not unprecedented and routinely performed. Many signs are quite specific and, in some cases, pathognomonic. Indeed, notwithstanding their degree of specificity, signs may help in the characterization of certain diseases. Several neuroradiological signs have been already described. The authors will present 15 neuroradiology signs in the present essay, approaching their main characteristics, the significance of their role in the clinical practice, as well as their respective imaging findings.

Keywords: Radiological signs; Neuroradiology; Computed tomography; Magnetic resonance imaging.

The use of signs for interpretation of images in neuroradiology is extremely useful. Some signs are quite specific and, in some cases, pathognomonic. In this second part of their essay, the authors describe 15 additional neuroradiological signs. Main characteristics of imaging findings will be approached and the significance of their role in the clinical practice will be discussed.

Keywords: Radiological signs; Neuroradiology; Computed tomography; Magnetic resonance imaging.