Imaging features inferring symptom onset due to spinal metastasis progression: a preliminary study

Area of Science:

• Oncology
• Radiology
• Neurology

Background:

• Spinal metastases significantly impair quality of life (QOL) and daily living (ADL) due to pain and neurological deficits.
• Early intervention is crucial to prevent irreversible neurological damage and pain progression.
• This study focuses on identifying imaging predictors of neurological deficits in spinal metastases.

Purpose of the Study:

• To investigate the imaging features of spinal metastases that precede the development of neurological deficits.
• To correlate specific lesion locations with distinct symptoms like motor paralysis and neuropathic pain.
• To explore the potential for early detection of symptomatic spinal metastases through imaging.

Main Methods:

• Analysis of axial computed tomography (CT) images of spinal metastases in patients with and without neurological symptoms.
• Correlation of lesion location (spinal canal, pedicle, vertebral body) with symptoms such as motor paralysis, neuropathic pain, and nociceptive pain.
• Evaluation of imaging features in relation to bone metastasis type (osteolytic vs. osteoblastic) and timing relative to symptom onset.

Main Results:

• Motor paralysis was associated with lesions in and around the spinal canal and pedicle.
• Neuropathic pain correlated with metastases spreading along the pedicle and surrounding the spinal canal.
• Local nociceptive pain was linked to lesions near the vertebral body center; no imaging differences were noted between osteolytic and osteoblastic metastases.

Conclusions:

• Specific asymptomatic spinal lesion locations can predict symptom onset within months.
• Early therapeutic intervention based on these imaging findings may prevent neurological complications.
• CT imaging can identify patients at risk for developing symptomatic spinal metastases.