Which condition is characterized by symptoms such as headache and quadriplegia?

The condition characterized by symptoms such as headache and quadriplegia is myelopathy. Myelopathy refers to spinal cord dysfunction, which can result from various causes, including compression of the spinal cord due to degenerative changes, trauma, or other pathologies. When the spinal cord is affected, it can lead to a range of neurological symptoms depending on the level of injury and the severity. Symptoms may include not only weakness in all four limbs, leading to quadriplegia, but also associated issues like headaches due to compromised structures or inflammation. The presence of headache alongside quadriplegia indicates that there might be a more systemic neurological issue at play, consistent with myelopathy.

In contrast, spinal stenosis typically results in localized pain, numbness, or weakness due to narrowing of the spinal canal but may not directly cause the widespread, severe symptoms associated with myelopathy. Radiculopathy is primarily related to nerve root compression, leading to symptoms like pain or numbness in specific dermatomes rather than comprehensive motor dysfunction. Cervical spondylosis involves degenerative changes in the cervical spine, which can lead to chronic neck pain and stiffness, but it does not specifically include the severe neurological symptoms related to myelopathy. Hence