Our Origins & Dr. Tarlov’s Legacy
Understanding the Origins of Spinal Meningeal Conditions
From Dr. Isadore Tarlov’s ground-breaking discovery in 1938 to modern-day patient advocacy.
Dr. Isadore Tarlov & The Discovery
Who Was Dr. Tarlov?
The Neurosurgeon. Dr. Isadore Tarlov was a neurosurgeon and researcher whose careful study of the spinal nerve roots laid the groundwork for how we understand spinal meningeal conditions today.
The Discovery. In 1938, during autopsy studies at the Montreal Neurological Institute, Dr. Tarlov first identified the perineurial cysts that now bear his name — fluid-filled sacs forming along the sacral nerve roots.
An Evolving Understanding. Long considered incidental and asymptomatic, Tarlov Cysts are now increasingly recognized as a potential source of symptomatic, debilitating pain and neurological dysfunction.
MONTREAL NEUROLOGICAL INSTITUTE, 1938
The Discovery of Perineurial Cysts
In 1938, during autopsy studies at the Montreal Neurological Institute, Dr. Isadore Tarlov first identified fluid-filled perineurial cysts on the sacral nerve roots. Once regarded as incidental findings, these cysts would later bear his name and become recognized as a potential source of debilitating symptoms.
Evolution of Understanding
From Incidental Finding to Recognized Condition
The Early View: Asymptomatic
For decades after their first description, perineurial cysts were largely regarded as incidental findings — anatomical curiosities seen on imaging or at autopsy and assumed to cause no symptoms. As a result, many patients' pain was overlooked or attributed to other causes.
The Shift: Symptomatic & Debilitating
Growing clinical experience and patient advocacy have shifted that view. Tarlov cysts are increasingly recognized as a potential source of chronic pain and neurological symptoms that can profoundly affect daily life — calling for informed diagnosis and dedicated care.
THE EVOLUTION OF SPINAL MENINGEAL CONDITIONS
Decades of Discovery, Doubt and Progress
Since 1938, understanding of perineurial cysts has moved from incidental findings toward recognition of a condition that deserves dedicated diagnosis and care.
Historical Diagnostic Challenges
For decades, Tarlov cysts were often dismissed as incidental and asymptomatic. Limited imaging and low awareness meant many patients faced long delays before their symptoms were connected to their cysts.
Major Medical Milestones
From Dr. Tarlov's 1938 autopsy observations at the Montreal Neurological Institute to advances in spinal imaging, each step brought these cysts into clearer view and opened the door to symptomatic recognition.
Shifts in Neurosurgical Approaches
Treatment options have evolved over the decades as neurosurgeons refined their understanding of these cysts, moving toward more considered, patient-centered approaches to care.
WHY THE TARLOV INITIATIVE WAS FOUNDED
Closing the Gap Between History and Hope
Decades after Dr. Tarlov's discovery, patients still face too many unanswered questions. We were founded to change that.
- The research gap: Symptomatic Tarlov Cysts remain understudied, with limited data to guide treatment.
- Diagnostic delay: Many patients wait years for answers as cysts are dismissed as incidental findings.
- Patient isolation: Living with a rare condition too often means navigating care alone.
- Our mission: Connecting history with future medical breakthroughs and patient empowerment.
Our Mission
EMPOWERMENT
Connecting Dr. Tarlov’s legacy with future medical breakthroughs — closing the research gap, shortening diagnostic delays, and ensuring no patient faces this condition alone.
Join the Movement
Honor Dr. Tarlov’s legacy by helping close the gap in research, diagnosis, and patient support. Explore our research resources or stand with our community.