BACKGROUND:The spinal epidural space, covering the dural sac, is located along the posterior longitudinal ligament anteriorly, the ligamentum flavum and the periosteum of laminae posteriorly, and the pedicles of the spinal column by the intervertebral foramina containing their neural elements laterally. It could be affected variably by different types of diseases, either as primary lesions or as an extension from a disease process in the nearby tissues and organs.AIM:We aimed to present clinically and surgically patients with spinal epidural masses operated in the Neurosurgery Department of Cairo University Hospitals, Cairo, Egypt, along a time interval of one year.METHODS:In this prospective cohort study, we analysed motor deficits, sensory deficits, and bowel and bladder dysfunction. We have performed decompressive laminectomy on 19 patients with spinal epidural masses together with mass excision as long as the tumour was accessible, with or without fixation.RESULTS:All patients were radiologically assessed by MRI over the affected side of the spine. D10 was the commonest site in our study to be affected in 10 cases of our participants (23%), followed by D5, D7, and D12 each of them was affected in 6 cases (14%), in another word spinal segments by order of frequency to be affected were dorsal followed by lumbar spine. All patients included in this study (100%) showed an obvious improvement as regard pain and tenderness.CONCLUSION:Surgical interventions have improved the quality of life for our patients with spinal epidural masses.

Introduction: Paget's disease of bone is usually asymptomatic in most cases. The neurosurgeon should be familiar with the common presentation and complications. The rare presentation of this case of Paget's disease of the skull raised our attention to report it. Case description: A Paget's disease patient presented in the emergency department with a disturbed conscious level (GCS 8) without any history of trauma or seizures. CT showed severe hypertrophied left frontal, temporal, and parietal bones with midline shift. The patient underwent an emergency left decompressive craniectomy. Postoperative CT scan was done and showed frontoparietal epidural hematoma on the opposite side which was evacuated immediately. The patient started to improve and became fully conscious in few days with marked improvement of the motor power of her right side. Discussion and evaluation: Severe skull involvement and impending brain herniation may occur in Paget's disease of the skull which needs urgent decompressive surgery. Contralateral epidural hematoma after decompressive surgery may rarely occur and should be suspected in case of intraoperative brain swelling and postoperative failure of improvement. Neurosurgeons and radiologists should recognize the rare phenomenon of periosteal bone formation in the pagetic bone and its extension into surrounding tissues. Conclusions: In our case, we faced an unusual life-threatening condition in a patient of Paget's disease with severe skull involvement leading to rapid deterioration of consciousness and impending brain herniation. The neurosurgeon should be aware of this rare emergency condition.