What does "Absence of the spinous process of C4" mean in a report or doctor's letter? In our medical dictionary, you will find a patient-friendly explanation of the meaning of this medical term.
"Absence of the spinous process of C4" refers to a medical condition where a specific part of the fourth bone in the neck, known as the C4, is missing. The spinous process is a bony projection off the back of each vertebra, which bones in the spine are called. In simple terms, it's like a small bony bump you can feel when you touch your back. So, this condition means that this small bony part is missing from the fourth neck bone.
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