Intraspinal extradural spinal cysts are rare lesions, which can induce symptoms due to spinal cord compression or even CSF low pressure syndrome. They are regarded to be result of a trauma, post-surgical, or even congenital. Depended on size and location of the cysts, patients could be asymptomatic for a long time until an enlargement of the cyst. To best of our knowledge, there is no previous report in literature with a 50 cm long intraspinal ventral extradural cyst causing spinal cord compression. Below we present our experience, we present our operative results, and provide a review of literature.