C1 Impression

A C1 impression refers to the initial clinical assessment or visual evaluation of the first cervical vertebra (C1), also called the atlas, seen through imaging tests like X-rays or MRI. This impression helps healthcare professionals determine the vertebra's alignment, stability, and structural integrity. It provides a preliminary overview to identify any abnormalities, injuries, or conditions affecting the upper neck area. Essentially, it's the doctor's initial interpretation of the imaging results related to C1, guiding further diagnosis and treatment decisions.