Motor tract involvement

Introduction Exercise conduction beam involvement is one of the clinical manifestations of primary intraspinal tumors. When the cervical spinal cord is partially compressed, the symptoms of spinal cord conduction bundle compression gradually appear on the basis of the original symptoms. For example, the spinal thalamus bundle is compressed, and the painful temperature sensation below the contralateral segment may occur. Or disappear; the posterior bundle is compressed, and deep sensory sensation may occur; the motor conduction beam is involved, which may cause upper motor neuron paralysis of the limb below the ipsilateral lesion segment, and the spinal cord hemisection syndrome is a specific symptom of extramedullary extramedullary tumor. .

Cause

As the cervical spinal cord compression period increases with the tumor, on the basis of the original symptoms, the symptoms of spinal cord conduction bundle compression gradually appear. For example, the spinal thalamus bundle is compressed, and the painful temperature sensation below the contralateral segment may occur. Or disappear; the posterior bundle is compressed, and deep sensation may appear; the motor conduction beam is involved.

an examination

Related inspection

Motor function check cerebrospinal fluid pH value

Primary tumors in the cervical spinal canal are not uncommon, but due to the nature and location of the tumor, the clinical manifestations are complex and diverse, which brings certain difficulties to the diagnosis. In the past 10 years, the emergence of new non-ionic iodine water-soluble contrast agents, the application of CT and MRI, make the tumor sites in the spinal canal mainly rely on auxiliary examination such as myelography, CT scan or MRI. In particular, the accurate identification of intramedullary tumors and extramedullary tumors depends more on imaging methods. Ni Bin et al reported that there were no complete paraplegia cases in 137 cases of intraspinal tumors. The time from onset to diagnosis was significantly shorter than in the past, and the improvement of imaging examinations played an important role. However, any advanced equipment can not replace clinical routine examination, comprehensive understanding of medical history, neurological examination and localization, identification of spinal cord tumors and spinal degenerative diseases, and important guiding significance for the identification of imaging examination sites and interpretation of image information. . Only by mastering the characteristics of imaging examination, selecting and applying according to actual conditions, and closely structure clinical, can the imaging examination of spinal cord tumors be more accurate.

Differential diagnosis

Differential diagnosis of motor conduction beam involvement:

The clinical manifestations of intraspinal tumors are various and often misdiagnosed if they are not noticed, so that different degrees of sputum can be diagnosed. The clinical manifestations of cervical intraspinal tumors are very similar to those of cervical spondylosis. Due to the high incidence of degenerative diseases of the spine, spinal cord tumors are often neglected, which not only makes patients experience ineffective treatment for a long time, but also causes irreversible damage to spinal nerves. Therefore, it increases. In this regard, clinicians should pay great attention to it. Ni Bin et al reported that 137 cases of spinal intraspinal tumors were misdiagnosed as cervical spondylosis in 21 cases, of which 2 cases were mistreated with cervical decompression. The main reason for misdiagnosis is the lack of understanding of the intraspinal tumor and the lack of vigilance. Neglecting medical history and basic examination is also one of the important reasons.

Primary tumors in the cervical spinal canal are not uncommon, but due to the nature and location of the tumor, the clinical manifestations are complex and diverse, which brings certain difficulties to the diagnosis. In the past 10 years, the emergence of new non-ionic iodine water-soluble contrast agents, the application of CT and MRI, make the tumor sites in the spinal canal mainly rely on auxiliary examination such as myelography, CT scan or MRI. In particular, the accurate identification of intramedullary tumors and extramedullary tumors depends more on imaging methods. Ni Bin et al reported that there were no complete paraplegia cases in 137 cases of intraspinal tumors. The time from onset to diagnosis was significantly shorter than in the past, and the improvement of imaging examinations played an important role. However, any advanced equipment can not replace clinical routine examination, comprehensive understanding of medical history, neurological examination and localization, identification of spinal cord tumors and spinal degenerative diseases, and important guiding significance for the identification of imaging examination sites and interpretation of image information. . Only by mastering the characteristics of imaging examination, selecting and applying according to actual conditions, and closely structure clinical, can the imaging examination of spinal cord tumors be more accurate.

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