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A rare diaphragm in the common carotid artery: A first case report and literature review
Ying Wang1, Jian-Chu Li, Ke Lv
1Department of Ultrasound, Chinese Academy of Medical Sciences & Peking Union Medical College Hospital Department of Human Anatomy, Histology and Embryology, Chinese Academy of Medical Sciences Department of Health Management, Peking Union Medical College Hospital, Beijing, China.
Rationale:
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.
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