and size in the spinal canal, the lesion can cause symptoms that vary from low back pain, unilateral or bilateral radiculopathy. Discal Cysts can be severe, causing neurological defi cits 3,6-8. The clinical symptoms of lumbar discal cyst are usually indistinguishable from those of disc herniation and other causes of neurological compression 3. The advance of image techniques and magnetic resonance imaging (MRI) being more accessible worldwide, the diagnosis of these lesions has been facilitated, with more accurate knowledge of their origin and anatomic-clinic correlation 9. The intraoperative detection of discal cysts and the confi rmation whether a cystic lesion has been