A rare diaphragm in the common carotid artery: A first case report and literature review

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Abstract

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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