We present a case of common carotid artery (CCA) diaphragm. To our knowledge, this is the first reported case in the imaging literature.Patient concerns:
A 33-year-old woman presented herself to an annual health examination without any report of ill health.Diagnoses:
A stenosis with aneurysm dilation on the proximal part of the right CCA was revealed on ultrasound and CTA, by which a diaphragm-like structure on the stenosis lesion was clearly identified. An anatomic variant of artery was first considered.Interventions:
The patient was followed up closely.Outcomes:
There was no progression of her CCA stonosis 1 year later.Lessons:
This unusual and previously unreported case is presented to alert vascular sonographers and radiologists to its existence.