Foramen magnum tumor symptoms?

summary

The tumors in foramen magnum are more common in women, and the ratio of male to female is about 1:1.4. The average age of onset was 40-55 years old. The duration of symptoms before treatment was relatively long, ranging from 12.1 to 30.8 months on average. Foramen magnum tumor symptoms? Let's talk about it

Foramen magnum tumor symptoms?

Patients with complex clinical manifestations, lack of characteristic symptoms and signs, so it is easy to be misdiagnosed as cervical spondylosis. Common symptoms and signs include head and neck pain, limb weakness, loss of sensation, dysphagia, etc. head and neck pain is the most common, often the first symptom, mostly sharp pain, and the pain intensifies during head and neck movement.

Then deep sensation, such as the loss of joint position sense and vibration sense, and limb rigidity, spasm and weakness, may appear. Most of them first occur in the ipsilateral upper limb, and then affect the limbs clockwise. The asymmetry of upper limb position sense and vibration sense is relatively specific.

In the posterior cranial nerves, glossopharynx, vagus and hypoglossal nerves were often involved, and accessory nerve symptoms were rare, which could be manifested as dysphagia, poor speech and intermittent breathing. Oral ulcer was also reported as the first symptom. The vertebrobasilar artery system may present transient or periodic symptoms due to tumor compression and traction, such as falls, migraine, etc.

matters needing attention

If the tumor is located behind or to the side of foramen magnum, craniotomy in the middle of posterior fossa can be used. When the scale part of occipital bone is fully exposed and the vertebral arch of cervical 1-2 spinous process is bitten off, due to the tumor occupying space, the foramen magnum and the dura mater of cervical 1-2 are full and the tension is high. At this time, it is necessary to avoid compressing the cervical spinal cord and medulla oblongata to prevent affecting the breathing. The dura mater was incised to expose the tumor. The base of the tumor is attached to the dura mater and cerebrospinal membrane. There is arachnoid space between the tumor and cervical spinal cord and medulla oblongata. If possible, the tumor can be separated under the microscope, and the tumor can be removed in blocks. The dura mater and dura mater eroded by the tumor can be removed together with the tumor. The medulla oblongata and cervical spinal cord should be protected during operation. Ventriculoperitoneal shunt can be performed if the tumor can not be completely removed and the patient has hydrocephalus at the same time.