Question

what radiographic sign is created by ossification of the supraspinous and interspinous ligaments?
a) trolley track sign
b) railroad sign
c) dagger sign
d) star sign

Explanation:

• The trolley - track sign is formed by ossification of the supraspinous and interspinous ligaments.
• The railroad sign is related to the spine in a different context (e.g., in some spinal imaging for other pathologies not specifically this ligament ossification).
• The dagger sign is often associated with other anatomical or pathological features in the body (not this ligament ossification).
• The star sign is not the term for this particular radiographic finding related to the ossification of supraspinous and interspinous ligaments.

Answer:

A. trolley track sign