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Pediatric Aneurysmal Bone Cysts
If your child has an aneurysmal bone cyst (ABC), Children's Health is here to offer expert and compassionate care. Our pediatric orthopedics program is ranked among the best in the country. Our team of orthopedists, surgeons, radiologists and others will work together to create a custom care plan tailored to your child’s exact needs.
What is a Pediatric Aneurysmal Bone Cyst?
A pediatric aneurysmal bone cyst is a benign (noncancerous) growth. ABC’s most often develop during the teens and early 20s. They can develop in any bone, but are most often found in the arms, legs, torso and spine. ABCs often grow quickly and require comprehensive treatment because they can cause the affected bone to expand and deform. These cysts are called “aneurysmal” because they expand inside the bone the same way an aneurysm balloons and expands from within an artery.
What are the types of Pediatric Aneurysmal Bone Cysts?
There are two types of aneurysmal bone cysts:
- Active: Where the cyst grows but is contained within the bone
- Aggressive: Where the cyst grows and spreads outside of the bone, affecting connective tissue like tendon and ligaments.
What are the signs and symptoms of a Pediatric Aneurysmal Bone Cyst?
- Pain and swelling in or around the affected bone
- A lump or bump under the skin, on or near a bone
- Fractures which occasionally occur when the cyst creates enough pressure to crack the bone.
- Neurological symptoms such as weakness, tingling or numbness in the lower extremities if the cyst is in the spine.
How is a Pediatric Aneurysmal Bone Cyst diagnosed?
We may use the following tools to diagnose an aneurysmal bone cyst:
- X-rays to take pictures of the bones
- Computed tomography (CT) scan to take detailed images from several angles of bones, blood vessels and soft tissue, providing more information than a typical X-ray.
- Magnetic resonance imaging (MRI) to create detailed 3D images of the bones, muscles and organs.
- Biopsy where doctors take a small tissue sample and study it in a lab
What causes Pediatric Aneurysmal Bone Cysts?
Scientists are still working to find the exact cause of aneurysmal bone cysts. They may happen because of abnormalities in the blood vessels within the bones. Certain gene changes (genetic mutations) are also associated with ABCs.
How is a Pediatric Aneurysmal Bone Cyst treated?
Our care team will create a custom treatment plan based on several factors including your child’s age and where the cyst is located. Treatment options include:
Curettage and bone grafting
Curettage is the most common way to treat an aneurysmal bone cyst. In this procedure, we use a tool called a curette to scrape the cyst out of the bone. Then, we fill the remaining space inside the bone with bone tissue from a donor, tissue from somewhere elsewhere in the child’s body or with a bone-like material.
We may also perform a procedure called “extended curettage” where we remove extra cells surrounding the cyst to help keep the cyst from growing back.
Marginal or wide excision
If an ABC is located on a bone a child can live without (such as a rib), we may perform a marginal excision. This procedure removes part of the affected bone. A wide excision removes some of the bone and surrounding tissue.
Pediatric Aneurysmal Bone Cysts Doctors and Providers
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Lawson Copley, MD Pediatric Orthopedic Surgeon -
Jaysson Brooks, MD Pediatric Orthopedic Surgeon -
Alexandra Callan, MD Pediatric Orthopedic Surgeon -
Henry Ellis Jr., MD Pediatric Orthopedic Surgeon -
Christine Ho, MD Pediatric Orthopedic Surgeon -
Megan Johnson, MD Pediatric Orthopedic Surgeon -
Amy McIntosh, MD Pediatric Orthopedic Surgeon -
William Morris, MD Pediatric Orthopedic Surgeon -
Emily Davenport, PA-C Physician Assistant - Orthopedics -
Elizabeth Hamilton, PA-C Physician Assistant - Orthopedics -
BRBryan Reynolds, PA-C Physician Assistant - Orthopedics
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Kelsey Weron, PA-C Physician Assistant - Orthopedics -
Shellye Crawford, APRN, PNP-PC Nurse Practitioner - Orthopedics -
Lori Thornton, APRN, FNP Nurse Practitioner - Orthopedics
Frequently Asked Questions
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How common are pediatric aneurysmal bone cysts?
Aneurysmal bone cysts are very rare. Less than 1 person in 100,000 will have one each year.
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How long will it take my child to recover from surgery to remove an aneurysmal bone cyst?
Each child’s recovery will be different and depends on the procedure they had and where their ABC was located.
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What is the recurrence rate of an aneurysmal bone cyst?
One in five patients will have aneurysmal bone cysts recur (come back) after treatment. Our team closely monitors patients who have been treated for ABCs so we can catch recurring cysts early and provide care.