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Analysis of the Causes and Experience in the Diagnosis and Treatment of Intravertebral Mobile Nerve Sheath Tumors-Case Report and Review of the Literature.

Abstract：

BACKGROUND:We sought to analyze the clinical data and imaging features from a rare case presenting an intravertebral mobile nerve sheath tumor of the lumbar spine, review the relevant literature, discuss the imaging features and possible causes of the tumor, and propose preventive measures and solutions. CASE DESCRIPTION:The clinical data and imaging data of a patient with a lumbar spinal canal mobile nerve sheath tumor were retrospectively analyzed in conjunction with the relevant literature. The first preoperative lumbar spine magnetic resonance imaging (MRI) showed the tumor located at level L1-2. Further lumbar spine MRI, which was performed 5 days later, showed the tumor was at level L3-4, with a range of motion of 8 cm. End spinal resection of the tumor was performed under general anesthesia, and a tumor, which was cystic solid, was found to be located at level L3-4. The tumor originated from a distinctly twisted and elongated posterior root of the spinal cord, with complete fusion of the tumor-bearing nerve. Both the tumor and tumor-carrying nerve were removed. Postoperative pathologic examination confirmed that the tumor was a nerve sheath tumor. Lumbar MRI on postoperative day 10 showed complete resection of the tumor in the L3-4 spinal canal. The patient was discharged with normal urination and defecation, normal sensation in both lower extremities, grade 5 muscle strength, normal muscle tone, and normal reflexes in both knee and Achilles tendons. CONCLUSIONS:Intravertebral mobile nerve sheath tumors are rare, and the marked distortion and elongation of the carrier nerve seen on MRI are important imaging features of this disease. The possible causes of tumor movement include tumor texture, location, positional changes, and altered cerebrospinal fluid dynamics. Acute changes in intraabdominal pressure caused by forceful defecation may be a high-risk factor for tumor migration. Multiple preoperative MRIs to localize the tumor are particularly important.

journal_name

World Neurosurg

journal_title

World neurosurgery

authors

You W,Hu W,Wang F,Pan Z,Zhu Q,Zhou J,Hu W

doi

10.1016/j.wneu.2020.07.166

subject

Has Abstract

pub_date

2020-11-01 00:00:00

pages

129-133

eissn

1878-8750

issn

1878-8769

pii

S1878-8750(20)31688-0

journal_volume

143

pub_type

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Analysis of the Causes and Experience in the Diagnosis and Treatment of Intravertebral Mobile Nerve Sheath Tumors-Case Report and Review of the Literature.