Cyst Aspiration

An ultrasound-guided cyst aspiration may be recommended by the radiologist or your physician to drain a cyst. Aspirating a cyst may be performed to relieve discomfort or to find out if a complex cyst is a fluid-filled cyst. 

The radiologist locates the cyst with use of breast ultrasound. The skin is cleansed with an antiseptic solution, and sterile towels are placed around the breast. A local anesthetic is injected into the breast where the aspiration is to be performed. The radiologist takes a needle and enters the cyst using ultrasound for guidance. The fluid in the cyst is aspirated into a syringe. The goal is to obtain all the fluid so that the image of the cyst disappears on the screen.

The fluid is observed by the radiologist who then determines if it needs to be sent to the lab for analysis. If so, it may take up to a week to get the results. Since the shell of the cyst remains, the cyst may fill back up with fluid.

Slight bruising and bleeding at the injection site may occur. A bandage and antibiotic ointment is applied. There are no restrictions after the procedure. You may use an over-the-counter analgesic for pain relief.

Preparing for Your Biopsy

  • Please eat before your procedure.
  • Call your insurance provider to pre-certify and inform them you are having this outpatient procedure to verify coverage.