The epidural growth of cysts into the spinal canal can causes compression of neural structures and their associated clinical symptoms. The clinical presentation of a cyst depends on its volume, site and its relationship to the surrounding bony and neural structures. The most common symptoms are painful radiculopathy (85%), neurogenic single-root or multiroot claudication (44%), sensory loss (43%), and motor weakness (27%). These cysts may develop from any joint lined by synovial membrane.

In this case probably the mechanical stimulus with conservative traetment was the cause of spontaneus resolution.