scholarly journals Magnetic resonance tractography exhibiting retrograde degeneration of the corticospinal tract in a patient with a unilateral spinal cord tumor

2021 ◽  
Vol 11 (4) ◽  
Author(s):  
Yusuke Osaki ◽  
Wataru Sako ◽  
Masafumi Harada ◽  
Yuishin Izumi
Keyword(s):  
Spinal Cord ◽  
Magnetic Resonance ◽  
Corticospinal Tract ◽  
Spinal Cord Tumor ◽  
Retrograde Degeneration

Cordectomy for Syringobulbo-Myelia with Sleep Apnea Secondary to a Spinal Extramedullary Tumor: Case Report

Neurosurgery ◽  
1989 ◽  
Vol 24 (1) ◽  
pp. 118-124 ◽  
Author(s):  
Kazuhiko Tokoro ◽  
Yasuhiro Chiba ◽  
Saburo Yagishita ◽  
Yumiko Kunimi
Keyword(s):  
Magnetic Resonance Imaging ◽  
Spinal Cord ◽  
Case Report ◽  
Sleep Apnea ◽  
Magnetic Resonance ◽  
Mixed Type ◽  
Spinal Cord Tumor ◽  
Spinal Tumor ◽  
Resonance Imaging ◽  
Extramedullary Tumor

Abstract The case of a 40-year-old man with syringobulbo-myelia secondary to an unresectable spinal extramedullary tumor is described. Fifteen years previously, the patient had undergone a laminectomy of T8 through T12 for a “benign” spinal cord tumor at another hospital and had become paraplegic; the tumor (neurinoma) had been neglected for 12 years. Magnetic resonance imaging demonstrated a large thoracolumbar spinal tumor with syringobulbo-myelia. Polysomnography showed central-, peripheral-, and mixed-type sleep apneas. After the failure of an attempted syringoperitoneal shunt, cordectomy at the level of T6 was performed with a good result. The mechanisms of the formation of syringomyelia and sleep apnea secondary to a caudal spinal extramedullary tumor are discussed.

Magnetic resonance imaging of intramedullary spinal cord schwannomas

2003 ◽  
Vol 99 (1) ◽  
pp. 114-117 ◽  
Author(s):  
Cesare Colosimo ◽  
Alfonso Cerase ◽  
Luca Denaro ◽  
Giulio Maira ◽  
Romano Greco
Keyword(s):  
Spinal Cord ◽  
Magnetic Resonance ◽  
Mr Imaging ◽  
Spinal Cord Tumor ◽  
Spinal Nerve ◽  
Benign Tumors ◽  
Imaging Features ◽  
Spinal Nerve Root ◽  
Resonance Imaging ◽  
Intramedullary Spinal Cord

✓ Intramedullary spinal cord schwannomas are rare benign tumors for which resection is possible and safe. The purpose of this paper is to present the magnetic resonance (MR) imaging features in two cases of intramedullary spinal cord schwannoma to assist both neurosurgeons and pathologists in preventing misdiagnosis and resultant partial resection. The MR imaging evidence of a small- or medium-sized well-marginated intramedullary spinal cord tumor in a patient in whom no syringomyelia is present but in whom moderate edema with marked Gd enhancement can be seen should be considered in the differential diagnosis of intramedullary spinal cord schwannoma. In cases in which an associated thickened Gd-enhancing spinal nerve root is seen the diagnosis of schwannoma should be assumed.

S122. Intraoperative electrical stimulation to identify the corticospinal tract and dorsal column during spinal cord tumor surgery

2018 ◽  
Vol 129 ◽  
pp. e187
Author(s):  
Kathleen Seidel ◽  
Vedran Deletis ◽  
Francesco Sala ◽  
Andreas Raabe ◽  
Darko Chudy ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Electrical Stimulation ◽  
Corticospinal Tract ◽  
Spinal Cord Tumor ◽  
Dorsal Column ◽  
Tumor Surgery ◽  
Intraoperative Electrical Stimulation

Subependymomas: An analysis of Clinical and Imaging Features

Neurosurgery ◽  
2006 ◽  
Vol 58 (5) ◽  
pp. 881-890 ◽  
Author(s):  
Brian T. Ragel ◽  
Anne G. Osborn ◽  
Kum Whang ◽  
Jeannette J. Townsend ◽  
Randy L. Jensen ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Spinal Cord ◽  
Magnetic Resonance ◽  
Spinal Cord Tumor ◽  
Benign Tumors ◽  
Resonance Spectroscopy ◽  
Imaging Features ◽  
Resonance Imaging ◽  
Radiographic Appearance ◽  
Intramedullary Spinal Cord

Abstract OBJECTIVE: Subependymomas are slow-growing, benign tumors usually found incidentally in the fourth ventricle at autopsy. They are typically associated with the ventricular system and become apparent clinically only when symptoms of hydrocephalus or mass effect develop. We review clinical, histological, and contemporary radiographic presentations of 16 subependymomas, including 2 intraparenchymal tumors. METHODS: We retrospectively evaluated eight patients with pathologically proven subependymomas. Initial magnetic resonance imaging and magnetic resonance spectroscopy were reviewed when available. Imaging was also available on eight outside subependymoma cases reviewed by our radiology department. RESULTS: Twelve of these subependymomas were intraventricular, one was in the posterior fossa, two were intraparenchymal, and one was an intramedullary spinal cord tumor. These lesions were hypo- to hyperintense on T1- and T2-weighted magnetic resonance imaging, with minimal to moderate enhancement. Initial complaints included headache, seizures, tingling sensations, and weakness. Among our eight patients who underwent gross total resection with no adjuvant therapy, no recurrences have been noted on follow-up magnetic resonance imaging. CONCLUSION: Subependymomas are rare, representing only 0.51% of all central nervous system tumors operated on during an 8-year period at the University of Utah. Clinical symptoms were associated with tumor location: intracranial masses caused headaches, seizures, and neurological complaints, and spinal cord locations resulted in neurological deficit. The authors review the clinical presentation, management, and contemporary radiographic appearance of this rare tumor.

Acute traumatic central cord syndrome: magnetic resonance imaging and clinical observations

2002 ◽  
Vol 96 (1) ◽  
pp. 29-33 ◽  
Author(s):  
Frédéric Collignon ◽  
Didier Martin ◽  
Jacques Lénelle ◽  
Achille Stevenaert
Keyword(s):  
Spinal Cord ◽  
Magnetic Resonance ◽  
Motor Neurons ◽  
Corticospinal Tract ◽  
Motor Deficit ◽  
Published Data ◽  
Content Type ◽  
Hyperintense Signal ◽  
Central Cord Syndrome ◽  
Fine Print

Object. Acute traumatic central cord syndrome has been classically thought to be caused by a hemorrhage that primarily affects the central part of the spinal cord and that destroys the axons of the inner part of the corticospinal tract devoted to the motor control of the hands. Some authors, however, have proposed that its pathogenesis is based on the destruction of the motor neurons supplying the muscles of the hand. To test the validity of these two theories, the authors retrospectively studied the magnetic resonance (MR) images obtained in 18 cases of acute traumatic central cord syndrome (ATCCS) to assess the presence of intramedullary blood and to define the distribution of the abnormal signal intensities in the cervical spinal cord. Methods. The authors used the American Spinal Injury Association (ASIA) motor scale to assess upper- and lower-limb deficits and to evaluate its metameric distribution. The abnormal intramedullary signal was then compared with the distribution of the motor deficit. All MR imaging sessions performed in the acute stage revealed a hyperintense signal on T2-weighted sequences without any signal change suggesting the presence of intramedullary blood. The localization of this signal was distributed predominantly from the C3–4 to the C5–6 disc levels. The mean ASIA motor score was 74.3 of 100, with an unequal representation between the upper and lower limbs (32 of 50 compared with 42.3 of 50, respectively). The metameric distribution of the deficit was also unequal, with a major deficit in hand function (C8—T1) compared with the more proximal cord segments (5.2 of 10 compared with 7.8 of 10, respectively). This demonstrates the absence of any correlation between the hyperintense signal and the motor deficit distribution. Conclusions. Acute traumatic central cord syndrome cannot be explained by the injury to the gray matter at the level of motor neurons supplying the hand muscles. In agreement with recently published data, the results of this series confirm the absence of intramedullary hemorrhage and corroborate the hypothesis that ATCCS may be explained by the impairment of the corticospinal tract, which can be affected globally.

scholarly journals Postoperative Magnetic Resonance Image Evaluation of Dumbbell Spinal Cord Tumor.

1999 ◽  
Vol 48 (1) ◽  
pp. 58-60
Author(s):  
Makoto Nakamura ◽  
Kazunori Yone ◽  
Hiroyuki Onishi ◽  
Takashi Motobe ◽  
Masataka Maeda ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Magnetic Resonance ◽  
Magnetic Resonance Image ◽  
Spinal Cord Tumor ◽  
Image Evaluation

Magnetic resonance imaging of syringomyelia associated with an extramedullary spinal cord tumor

Neurosurgery ◽  
1987 ◽  
Vol 21 (2) ◽  
pp. 233???5 ◽  
Author(s):  
P A Rhyner ◽  
R J Hudgins ◽  
M S Edwards ◽  
M Brant-Zawadzki
Keyword(s):  
Magnetic Resonance Imaging ◽  
Spinal Cord ◽  
Magnetic Resonance ◽  
Spinal Cord Tumor ◽  
Resonance Imaging

Magnetic Resonance Imaging of Syringomyelia Associated with an Extramedullary Spinal Cord Tumor: Case Report

Neurosurgery ◽  
1987 ◽  
Vol 21 (2) ◽  
pp. 233-235 ◽  
Author(s):  
Patricia A. Rhyner ◽  
Roger J. Hudgins ◽  
Michael S. B. Edwards ◽  
Michael Brant-Zawadzki
Keyword(s):  
Magnetic Resonance Imaging ◽  
Spinal Cord ◽  
Case Report ◽  
Magnetic Resonance ◽  
Spinal Cord Tumor ◽  
Resonance Imaging ◽  
Spinal Cord Tumors

Abstract The association of syringomyelia and extramedullary spinal cord tumors is rare. We present the case of a patient with this association documented by magnetic resonance imaging and discuss the unusual features of the syrinx.

scholarly journals Magnetic resonance imaging of spinal cord tumor.

1989 ◽  
Vol 37 (4) ◽  
pp. 1560-1563
Author(s):  
Hisayoshi Matsuda ◽  
Naoya Tajima ◽  
Kouichi Tashiro ◽  
Keiichiro Kawano ◽  
Kouichi Matsumoto
Keyword(s):  
Magnetic Resonance Imaging ◽  
Spinal Cord ◽  
Magnetic Resonance ◽  
Spinal Cord Tumor ◽  
Resonance Imaging
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