The Neurosurgical Atlas

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The Neurosurgical Atlas

The Neurosurgical Atlas is the most popular and comprehensive resource for microsurgical techniques in the world.
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The Neurosurgical Atlas is the most comprehensive regularly updated atlas on the web, keeping neurosurgeons abreast of cutting edge technical nuances. We aim to teach techniques to improve patients' safety and surgical outcome. Our vast collection of surgical videos and illustrations provide a clear and concise road map while elucidating surgical nuances for proper completion of even the most difficult procedures. The site also features resources for patients at http://www.neurosurgicalatlas.com/video-conference-center

12/05/2025

We're proud to share that Dr. Aaron Cohen-Gadol has launched the ATLAS Institute of Brain & Spine in Los Angeles, expanding access to world-class care for complex brain and spine conditions.

Dr. Cohen is internationally recognized for pioneering techniques that remove some of the most complex tumors through small or no incisions—prioritizing safety, preservation of normal brain and spinal cord, and faster recovery.

The Institute will provide advanced surgical treatment for conditions including brain tumors, cerebrovascular disease (aneurysms, AVMs, cavernous malformations), and cranial nerve disorders such as trigeminal neuralgia and hemifacial spasm.

Find us at: https://zurl.co/ATLASInstitute

Read more here on PRNewswire: https://zurl.co/YvsCn

12/01/2025

In this operative video, Dr. Cohen demonstrates the retromastoid approach for resection of a root-type trigeminal schwannoma.

This portion of the operation involves dissecting the tumor from the root entry zone of the trigeminal nerve, where it is intimately associated with several fascicles. Piecemeal debulking continues as the nerve is seen adherent to the inferior pole of the tumor, requiring patience to avoid avulsion of intact trigeminal nerve fascicles. The ultrasonic aspirator is used to evacuate the fibrous portions of the tumor, exposing the nerve and the components embedded within the root entry zone and entering the tumor capsule.

Learn more here: https://zurl.co/xJlnj

This post contains surgical content intended for educational use by medical professionals. Viewer discretion is advised.

11/26/2025

We’re proud to announce the Schwartz Collection, now available as part of The Neurosurgical Atlas’s video collection. This collection of nearly 200 videos is a comprehensive library of endoscopic surgical mastery by Theodore H. Schwartz, MD.

This master series distills more than two decades of Dr. Schwartz’s experience in endoscopic skull base surgery into a structured, case-based video curriculum.

Available now at https://zurl.co/SchwartzCollection

11/22/2025

In this operative video, Dr. Cohen demonstrates a frontotemporal approach for evacuation of a hematoma and clipping of an MCA aneurysm.

The Sylvian fissure, frontal lobe, and temporal lobe were exposed. A corticotomy was made at the site of hemorrhage to decompress the brain and access the aneurysm corridor. The hematoma was evacuated while leaving a clot over the dome for protection. The M1 segment was identified within the fissure and followed distally to the bifurcation. A temporary clip was applied to M1, and circumferential dissection of the aneurysm was carried out. A curved permanent clip was placed to completely exclude the aneurysm while preserving all branch vessels.

Learn more here: https://zurl.co/xpcp9

This post contains surgical content intended for educational use by medical professionals. Viewer discretion is advised.

11/13/2025

In this operative video, Dr. Cohen demonstrates a combined retrosigmoid and supracerebellar approach for resection of a petroclival epidermoid cyst.

Working between the nerves, tumor fragments are removed circumferentially around the third cranial nerve. This complex tumor involves several cranial nerve complexes, characteristic of epidermoid tumors that encase rather than displace neurovascular structures. Small portions of tumor embedded along the posterior aspect of the fifth cranial nerve and its root entry zone are carefully removed. The fifth nerve is gently mobilized to expand the operative corridor through the supratrigeminal and infratrigeminal triangles. Dissection continues toward the sixth cranial nerve and the entry zone of the brainstem.

Learn more here: https://zurl.co/EyIZb

This post contains surgical content intended for educational use by medical professionals. Viewer discretion is advised.

11/05/2025

In this operative video, Dr. Cohen demonstrates an orbitozygomatic approach for resection of a spheno-orbital meningioma.

The portion of periorbita infiltrated by tumor is separated from orbital fat, with resection limited at the level of the superior orbital fissure. The affected dura is then incised, and the intradural tumor is removed in standard fashion while preserving all arachnoid membranes. The middle meningeal artery is identified and coagulated, and the soft frontal dura involved by tumor is resected back to normal-appearing margins. Dural edges are coagulated to minimize recurrence. A free pericranial graft is used to reconstruct the dural defect, and the orbital rim and calvarial defect are reconstructed using an implant and titanium mesh.

Learn more here: https://zurl.co/E8ITX

This post contains surgical content intended for educational use by medical professionals. Viewer discretion is advised.

10/29/2025

In this operative video, Dr. Cohen demonstrates the retromastoid approach for resection of a medium-sized acoustic neuroma.

The vestibulocochlear nerves are disconnected when hearing is non-functional preoperatively. The arachnoid bands are separated from the tumor capsule near the root exit zone of the facial nerve, maintaining intact peeled surfaces. Continuous mapping is performed with stimulation to confirm the course of the facial nerve and avoid overstimulation that may cause postoperative paresis. Once the tumor is mobilized anteriorly and the nerve fully visualized, ENT colleagues conduct the intracanalicular portion of the surgery. The dura over the internal auditory canal is stripped, and drilling achieves 270-degree skeletonization.

Learn more here: https://zurl.co/gLRLe

This post contains surgical content intended for educational use by medical professionals. Viewer discretion is advised.

10/24/2025

Watch the full recording of the SBMT × ATLAS webinar: AI-Powered Clinical Reasoning: Real-Time Decision Support in Neuroscience & Beyond.

Discover how AI-driven systems are redefining medical decision-making — from adaptive case analysis to real-time intraoperative support.

Watch now: https://youtu.be/gPJ8GGXLA2Q

10/21/2025

Last Chance to Register — Only 2 Days Away!

Don’t miss the SBMT × ATLAS webinar:
AI-Powered Clinical Reasoning — Real-Time Decision Support in Neuroscience & Beyond

Join leading experts exploring how emerging tools are shaping modern clinical reasoning and surgical decision-making through real-world case analysis and live demonstrations.
Secure your spot before it fills | https://zurl.co/2Wvgt

Please note, the start time for the webinar has been moved to 9:30 AM PDT

10/19/2025

As a neurosurgeon, three key factors are critical to skill development:

• Objective self-reflection and learning from all experiences.
• Confidence to tackle complex cases and prioritize patient welfare.
• Visionary innovation, always questioning old methods and adopting new techniques.

Want to learn more about what it takes to be a neurosurgeon? Log in to Neurosurgical Atlas to learn more about these principles and explore essential resources. | https://zurl.co/5zVcq

10/17/2025

In this operative video, Dr. Cohen demonstrates the transcranial approach for resection of a pituitary adenoma.

The patient had previously undergone an endoscopic transnasal resection, but residual tumor was noted on post-operative MRI. A pterional craniotomy was performed, the Sylvian fissure was widely dissected, and a subfrontal trajectory used to reach the opticocarotid region. The arachnoid bands around the optic nerves were disconnected, and the tumor capsule was incised. The tumor was further evacuated with ring curettes medial to the carotid artery while carefully preserving perforating vessels. The superior carotid triangle was avoided due to obstructive perforators. Portions of the capsule adherent to the optic nerve and thalamus were left in place to prevent injury. Postoperative imaging confirmed optic nerve decompression.

Learn more here: https://zurl.co/hgo4n

This post contains surgical content intended for educational use by medical professionals. Viewer discretion is advised.

10/13/2025

AI-Powered Clinical Reasoning: Real-Time Decision Support in Neuroscience & Beyond

Explore how emerging tools are changing the landscape of medical decision-making — from dynamic case analysis to real-time support in the operating room.

Join the SBMT × ATLAS webinar for an open discussion and live demonstrations featuring experts at the intersection of neuroscience and intelligent systems.

Register now: https://zurl.co/QE8WA

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