Related Experiment Video
Updated: May 16, 2026

Transforaminal Full-Endoscopic Lumbar Foraminotomy Under Local Anesthesia for L5/S1 Adjacent Segment Foraminal Stenosis
Published on: October 17, 2025
Linear segmental neurofibromatosis in an L5 distribution
Nicole Umanoff1, Kate V Viola, Jena Auerbach
1Division of Dermatology, Department of Medicine, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, New York 10467, USA.
Background And Objective:
Neurofibromatosis (NF) is a neurocutaneous disorder with seven subtypes;segmental NF-1 is characterized by neurofibromas and or café-au-lait macules in one or more dermatomes, primarily the thorax and abdomen. We present the rare case of a 36-year-old African-American female with isolated, multiple soft nodules in a linear configuration on the plantar and dorsal surfaces of the left foot.
Conclusion:
This is the first report of isolated segmental NF-1 in a unique linear pattern confined to the L5 dermatome.
Related Concept Videos
Spinal Nerves: Plexus I
The Cervical Plexus
The cervical plexus, formed by the anterior rami of the first four...
Spinal Nerves: Plexus II
The Lumbar Plexus
The lumbar plexus is situated within the lumbar region of the back and is primarily formed by the first four lumbar spinal nerves (L1 to L4). This plexus extends its branches into several nerves, including the...
The Spinal Cord
Spinal Nerves: Anatomy
There are 31 bilateral pairs of spinal nerves, each emerging from the spinal cord through the intervertebral foramina—openings between adjacent vertebrae. These nerves are...
Herniated Intervertebral Disc l: Introduction
Secondary Spinal Cord Injury llI: Pathophysiology

