Based on the MRI lumbar spine without contrast, where is the tip of the conus medullaris located?

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Multiple Choice

Based on the MRI lumbar spine without contrast, where is the tip of the conus medullaris located?

Explanation:
The tip of the conus medullaris is located around the L1–L2 vertebral level in adults. On a lumbar spine MRI, you should see the tapered end of the spinal cord ending near L1-L2, with the cauda equina extending below. This anatomical position reflects how the spinal cord ends while the vertebral column continues to grow longer. There is some normal variation (often up to L2, and in infants it can be a bit lower), but levels much higher in the thoracic region (like T9–T12) or much lower (like L4–L5) aren’t typical for the conus tip.

The tip of the conus medullaris is located around the L1–L2 vertebral level in adults. On a lumbar spine MRI, you should see the tapered end of the spinal cord ending near L1-L2, with the cauda equina extending below. This anatomical position reflects how the spinal cord ends while the vertebral column continues to grow longer. There is some normal variation (often up to L2, and in infants it can be a bit lower), but levels much higher in the thoracic region (like T9–T12) or much lower (like L4–L5) aren’t typical for the conus tip.

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