Primary extramedullary extradural ependymoma of the thoracic spine mimicking a schwannoma

A 60-year-old woman presented with a 5-month history of paraesthesias on both feet, progressively extending upwards, bilateral leg weakness and hypoestesia. Neurological status progressively worsened, leading to paraparesis. In the last 2 weeks, she started complaining of urinary frequency and constipation. On neurological examination, the patient had diffuse lower-extremities weakness (left leg 1–2/5, right leg 3–4/5), was not able to maintain a straight posture, had a T9 sensory level and had symmetrical hyper-reflexia at the knees and ankles with left clonus; both great-toes were upgoing.