Klippel–Feil syndrome

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Science and technology

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What Wikipedia says

Klippel–Feil syndrome (KFS), also known as cervical vertebral fusion syndrome, is a rare congenital condition characterized by the abnormal fusion of any two of the seven bones in the neck (cervical vertebrae).

Excerpt from the Wikipedia article “Klippel–Feil syndrome”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Noble, Frawley, Public domain, via Wikimedia Commons.