• Pre-operative lumbar drain in transnasal transsphenoidal surgeries for pituitary adenomas can aid surgical excision.
• It reduces the incidence of post-operative CSF leaks.
• It does not affect the length of hospital stay.

● The diagnostic and management dilemma in patients with SIH with subdural hematoma is discussed.
● Surgical repair of the CSF leak has its role, even though most SIHs can be managed with an epidural blood patch.
● Definitive management of the SIH should be sought once subdural hematoma has set in.

● An update on the Brown-Sequard Syndrome (BSS) described a century ago is considered.
● Contrary to popular belief, major traumas are not the most common cause of BSS today.

• Dural ectasia is one of the most prevalent clinical manifestations of neurofibromatosis type 1. It should be differentiated from posterior mediastinal tumors.
• Dural ectasia may be accompanied by spinal deformities.
• Surgery may be required to stabilize the spine or when symptoms appear due to the imposed pressure on the surrounding organs.

• Iatrogenic spinal subdural hematoma radiologically mimicking a prolapsed dorsolumbar disc has not been published in the literature.
• A 65-year-old female was posted for D12-L1 discectomy and was found to have SSH intra-operatively which mimicked disc prolapse on MRI.
• Although MRI is the investigation of choice, SSH presenting, like a prolapsed intervertebral disc on MRI is among its kinds and should be considered because it carries a grave prognosis if not treated early with emergency decompression.

• Chondrosarcoma is a malignant cartilaginous tumor, rarely seen in the cranium mostly in the skull base.
• The Chondrosarcoma of the skull vault is a rare entity.
• Radiological findings are suggestive but definitive diagnosis is based on histological analysis.
• Surgery is the mainstay of treatment followed by adjuvant radiotherapy to reduce recurrences.
• Prognosis is based on histological type and grade, the extent of tumor removal, using the post-operative adjuvant radiation therapy, and history of previous treatment.