Pseudoaneurysm associated with arteriovenous fistula involving a superficial breast arteriole after vacuum-assisted removal of a benign mass: A case report

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Abstract

Rationale:

Pseudoaneurysm (PA) with associated arteriovenous fistula (AVF) is most often secondary to vascular catheterization, percutaneous biopsy, surgery, or trauma. PA-AVF occurs mainly in large or median arterial territories but rarely in the superficial arterioles of the breast.

Patient concerns:

A 30-year-old woman underwent vacuum-assisted removal of breast fibroadenomas under ultrasonic guidance. On the follow-up visit, the patient complained of a painful enlarging lump in her left breast.

Diagnoses:

An iatrogenic breast PA-AVF was diagnosed.

Interventions:

The patient was treated with surgical excision and ligation under local anesthesia.

Outcomes:

At the 1-month follow-up, the wound was found to have healed well, and breast PA-AVF was eradicated.

Lessons:

Vacuum-assisted removal has been the first-line intervention for benign mass resection because of minimal invasion, but the risk of serious vascular complications remains. Careful duplex ultrasound examination prior to the procedure is highly recommended.

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