"T1: homogeneous very low signal intensity"
"T2: high signal intensity"
"Decompression of neural structures is the treatment aim. Conservative measures didn't yield good results, and percutaneous aspiration of the cyst is usually ineffective. Complete surgical resection of the cyst and the affected ligamentum flavum usually provides a complete cure with a decreased recurrence rate. This can also be done endoscopically. 4."