A medical image or X-ray of a joint, often taken after injecting a contrast medium to better visualize the joint structures and potential damage.
From 'arthro-' (joint) from Greek 'arthron' combined with '-gram' (recorded image or message) from Greek 'gramma.' This technical term emerged with modern radiography in the 20th century.
Arthrograms are medical detective work—by injecting dye into a joint and taking X-rays, doctors can see tears, inflammation, and structural problems that would be invisible in regular images, like using forensic techniques on your knees.
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