Skull Base Tumors & Disorders
The skull base is a complex bony structure at the bottom of the skull where critical nerves and blood vessels pass between the brain and the rest of the body. Tumors and other conditions in this area present unique surgical challenges due to their proximity to vital structures.
Understanding Skull Base Conditions
Skull base conditions encompass a range of tumors and disorders that develop at the base of the skull. These areas are difficult to access through traditional surgical approaches because they are surrounded by critical nerves, major blood vessels, and the brainstem. Conditions in this region can affect vision, hearing, facial sensation, balance, and other essential neurological functions.
Conditions Dr. Kassam Treats
Chordomas
Rare, slow-growing tumors that arise from remnants of the notochord, typically found around the clivus at the skull base.
Meningiomas
Tumors arising from the meninges that can grow along the skull base, compressing the brain and cranial nerves.
Craniopharyngiomas
Benign but locally aggressive tumors near the pituitary stalk that can affect vision, hormonal function, and hypothalamic regulation.
Esthesioneuroblastoma
Also known as olfactory neuroblastoma. A rare malignant tumor originating in the upper nasal cavity that can extend into the skull base.
Sinonasal Tumors
Tumors arising in the sinuses or nasal cavity that may invade the skull base.
Cerebrospinal Fluid (CSF) Leaks
Abnormal openings in the skull base membranes that allow cerebrospinal fluid to drain through the nose.
Skull Base Aneurysms
Abnormal bulges in blood vessels at the skull base that may require surgical intervention.
Signs & Symptoms
Symptoms depend on the specific location and type of skull base condition, but commonly include:
- Vision changes or loss, including double vision
- Hearing loss or ringing in the ears
- Facial numbness or pain
- Difficulty swallowing or speaking
- Nasal obstruction or recurrent nosebleeds
- Headaches
- Hormonal imbalances
- Balance problems or dizziness
Symptoms vary by condition. A comprehensive neurological evaluation is essential for accurate diagnosis.
Diagnostic Approach
Dr. Kassam and his team use advanced imaging and clinical evaluation to develop a precise understanding of each patient's condition before determining the best course of treatment. The diagnostic workup typically includes:
- Comprehensive neurological examination
- MRI with diffusion tensor imaging (DTI) and 3D tractography
- CT angiography (CTA)
- Endocrine evaluation when pituitary involvement is suspected
- Visual field testing
- Angiography for vascular lesions
- Digital subtraction angiography (DSA), in select cases
This detailed imaging allows the surgical team to create a tailored plan, mapping the precise anatomy of the tumor relative to critical nerves and blood vessels.
Dr. Kassam's Approach
Dr. Kassam is an internationally recognized leader in Endoscopic Endonasal Skull Base Surgery, a minimally invasive technique that accesses skull base tumors through the natural nasal passages, eliminating the need for external incisions.
The endonasal approach uses an endoscope, a thin tube with a light and camera, to navigate through the nasal cavity. This provides a clear, magnified view of the surgical site, allowing for precise removal of tumors and lesions while preserving critical surrounding structures.
No external incisions: Surgery is performed entirely through the natural nasal passages.
Reduced complications: Less tissue disruption leads to fewer surgical complications.
Shorter hospital stays: Minimally invasive access enables faster recovery.
Enhanced precision: High-definition endoscopic imaging provides superior visualization of the surgical field.
Dr. Kassam and his team have performed thousands of endoscopic endonasal surgeries and routinely treat cases referred from other centers as too complex or inoperable. A comprehensive multidisciplinary team, including neurosurgeons, ENT specialists, and ophthalmic surgeons, ensures personalized treatment from diagnosis through recovery.
Learn more about the Endoscopic Endonasal Approach →What to Expect
Consultation & Evaluation
A thorough neurological examination and discussion with Dr. Kassam and his team to understand your condition and medical history.
Advanced Imaging & Planning
High-resolution MRI, CT, and specialized imaging to map the tumor and surrounding structures with precision.
Multidisciplinary Surgery
Surgery performed by a coordinated team of specialists using state-of-the-art minimally invasive technology.
Recovery & Follow-Up
Dedicated post-surgical monitoring and follow-up to ensure optimal recovery and long-term outcomes.
Related Conditions & Innovations
The information on this page is intended for educational purposes only and should not be used as a substitute for professional medical advice, diagnosis, or treatment. Every patient's condition is unique. Please consult with Dr. Kassam or your physician to discuss your specific situation.