Spinal Perineural Cysts among European Patients

2021 ◽  
Author(s):  
Piotr Kozłowski ◽  
Paweł Kalinowski ◽  
Magdalena Kozłowska ◽  
Małgorzata Jankiewicz ◽  
Agnieszka Budny ◽  
...  
Keyword(s):  
Spinal Nerve ◽  
Spinal Nerve Roots ◽  
Resonance Imaging ◽  
Nerve Roots ◽  
Tarlov Cyst ◽  
Sacral Region ◽  
Single Cyst ◽  
Degenerative Disk Disease ◽  
Spinal Mri ◽  
Magnetic Resonance Imaging Mri

Abstract Background A perineural (Tarlov) cyst is a fluid-filled lesion occurring between the perineurium and the endoneurium of spinal nerve roots. The aim of the study was to evaluate the prevalence and morphology of perineural cysts, detected incidentally in patients with symptomatic degenerative disk disease. Materials/methods The study was based on the retrospective data gathered during magnetic resonance imaging (MRI) examinations. Results and Conclusions Out of 3,128 spinal MRI examinations, perineural cysts were detected in 286 patients (9%). The cysts were most commonly observed in the sacral region, followed by thoracic, cervical, and lumbar regions. Cysts were more common in women than in men and the average age of patients was 54.8 years. In the majority, a single cyst was found. The average longest dimension of the lesion was 11.72 mm.

Giant sacral meningeal diverticula: surgical implications of the “thecal tip” sign

2006 ◽  
Vol 5 (5) ◽  
pp. 443-446 ◽  
Author(s):  
Frank Feigenbaum ◽  
Fraser C. Henderson
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Operative Technique ◽  
Spinal Nerve ◽  
Surgical Anatomy ◽  
Spinal Nerve Roots ◽  
Resonance Imaging ◽  
Nerve Roots

✓ The surgical anatomy of giant sacral meningeal diverticula varies greatly depending on whether they develop ventral or dorsal to the thecal sac and spinal nerve roots. The ability to distinguish between the two lesion types preoperatively is therefore advantageous. The authors present a method of distinguishing ventral from dorsal meningeal diverticula on magnetic resonance imaging using the “thecal tip sign.” They also describe the differences in operative technique required for resection of each type of diverticular cyst.

scholarly journals V. Investigations into the segmental representation of movements in the lumbar region of the mammalian spinal cord. —Excitation of the spinal cord, and direct excitation of the spinal nerve roots

1897 ◽  
Vol 188 ◽  
pp. 191-210
Keyword(s):  
Spinal Cord ◽  
Spinal Nerve ◽  
Lumbar Region ◽  
Spinal Nerve Roots ◽  
Nerve Roots ◽  
Sacral Region ◽  
Direct Excitation ◽  
Excitation Method

The following research was carried out in consequence of suggestions made to me by Professor Victor Horsley, to whom I wish to express my thanks for placing the facilities of his laboratory at my disposal, and for his advice and criticisms during the prosecution of the work and in the preparation of the paper. I also wish to return my best thanks to Professor Johannes Gad, in whose laboratory tire first part of the work was carried out, for his ever-ready and constant help and advice. I have further to thank my friend Dr. Risien Russell for his kindness in assisting me in some of my earlier experiments on the monkey. The researches were undertaken with the view of throwing light upon the degree to which certain movements or, speaking more precisely, sensori-motor (kinæsthetic) phenomena are represented in any given segment of the lumbo-sacral region of the mammalian spinal cord, and further what relationship exists between the representation of one movement and that of another. It is clear that at least three methods suggest themselves as means whereby this problem may be attacked, e. g. , (1) the excitation method, (2) the method of exclusion by ablation, and (3) the so-called degeneration method. Of these Nos. (2) and (3) have been already in part employed (No. (2) Sherrington, Risien Russell, No. (3) Grünbaum), but believing that with suitable precautions more exact localisation could be obtained by the excitation method, I have so far adopted that alone.

scholarly journals Langerhans Cell Histiocytosis of the Thoracic Spine in an Adult Presenting as Thoracic Radiculopathy

2021 ◽  
Vol 39 (4) ◽  
pp. 336-339
Author(s):  
Sooyoung Kim ◽  
Seung Min Kim ◽  
Eunah Shin ◽  
Jiman Hong
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Thoracic Spine ◽  
Langerhans Cell Histiocytosis ◽  
Bone Biopsy ◽  
Spinal Nerve ◽  
Langerhans Cell ◽  
Spinal Nerve Roots ◽  
Resonance Imaging ◽  
Nerve Roots

A 35-year-old man complained of right truncal pain around T7-8 dermatomal distribution and on examination, T7-8 spinal tenderness was observed. Magnetic resonance imaging showed osteolytic mass in T8 vertebral body without structural lesions involving spinal nerve roots. Dermatomal somatosensory evoked potentials (DSEP) were helpful in diagnosis with thoracic radiculopathy. Finally, Langerhans cell histiocytosis was confirmed in bone biopsy. Thoracic radiculopathy can be caused by various etiologies including bone tumor and DSEP is useful supplementary tool for diagnosing thoracic radiculopathy.

scholarly journals A case of neurosarcoidosis with swelling and gadolinium enhancement of spinal nerve roots on magnetic resonance imaging

2011 ◽  
Vol 51 (7) ◽  
pp. 483-486 ◽  
Author(s):  
Masato Ishibashi ◽  
Noriyuki Kimura ◽  
Yoshiaki Takahashi ◽  
Yuki Kimura ◽  
Yusuke Hazama ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Spinal Nerve ◽  
Spinal Nerve Roots ◽  
Resonance Imaging ◽  
Gadolinium Enhancement ◽  
Nerve Roots

Enlarged spinal nerve roots in RASopathies: Report of two cases

2021 ◽  
Vol 64 (4) ◽  
pp. 104187
Author(s):  
Leoni Chiara ◽  
Tedesco Marta ◽  
Talloa Dario ◽  
Verdolotti Tommaso ◽  
Onesimo Roberta ◽  
...  
Keyword(s):  
Spinal Nerve ◽  
Spinal Nerve Roots ◽  
Nerve Roots

Lumbosacral intersegmental epispinal axons and ectopic ventral nerve rootlets

1987 ◽  
Vol 67 (2) ◽  
pp. 269-277 ◽  
Author(s):  
Wesley W. Parke ◽  
Ryo Watanabe
Keyword(s):  
Nerve Root ◽  
Sensory Nerve ◽  
Conus Medullaris ◽  
Spinal Nerve ◽  
Nerve Fibers ◽  
Ventral Horn ◽  
Spinal Nerve Roots ◽  
Nerve Roots ◽  
Content Type ◽  
Almost All

✓ An epispinal system of motor axons virtually covers the ventral and lateral funiculi of the human conus medullaris between the L-2 and S-2 levels. These nerve fibers apparently arise from motor cells of the ventral horn nuclei and join spinal nerve roots caudal to their level of origin. In all observed spinal cords, many of these axons converged at the cord surface and formed an irregular group of ectopic rootlets that could be visually traced to join conventional spinal nerve roots at one to several segments inferior to their original segmental level; occasional rootlets joined a dorsal nerve root. As almost all previous reports of nerve root interconnections involved only the dorsal roots and have been cited to explain a lack of an absolute segmental sensory nerve distribution, it is believed that these intersegmental motor fibers may similarly explain a more diffuse efferent distribution than has previously been suspected.

The Diagnostic Value of MRI in Traumatic Brachial Plexus Injury

1994 ◽  
Vol 19 (1) ◽  
pp. 55-59 ◽  
Author(s):  
M. OCHI ◽  
Y. IKUTA ◽  
M. WATANABE ◽  
K. KIMOR ◽  
K. ITOH
Keyword(s):  
Brachial Plexus ◽  
Nerve Root ◽  
Brachial Plexus Injury ◽  
Diagnostic Value ◽  
Resonance Imaging ◽  
Nerve Roots ◽  
Surgical Exploration ◽  
Nerve Root Avulsion ◽  
Magnetic Resonance Imaging Mri ◽  
The Individual

Findings in 34 patients with traumatic brachial plexus injury documented by surgical exploration and intra-operative somatosensory-evoked potentials were correlated with findings on myelography and magnetic resonance imaging (MRI) to determine whether MRI can identify nerve root avulsion. The coronal and sagittal planes were not able to demonstrate avulsion of the individual nerve roots. The axial and axial oblique planes did provide useful information to determine which nerve root was avulsed in the upper plexus, although it was difficult to clearly delineate the lower cervical rootlets. The accuracy of MRI was 73% for C5 and 64% for C6 and that of myelograpby 63% for C5 and 64% for C6. Thus, the diagnostic accuracy of MRI for upper nerve roots was slightly superior to myelography. Although its primary diagnostic value is limited to the upper nerve roots whose avulsion is relatively difficult to diagnose by myelography, MRI can provide useful guidance in the waiting period prior to surgical exploration after brachial plexus injury.

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