What is osteosarcoma?

Osteosarcoma is a type of bone cancer that originates in cells of the bone. The word “osteosarcoma” comes from the Greek words sarc , meaning fleshy substance, and oma , meaning growth. Osteo adds bone-like to the word sarcoma . It can occur anywhere along the skeleton, but the most common sites are in longer bones, for instance around the knee (distal femur and proximal tibia) and shoulder (proximal humerus).

How common is osteosarcoma?

Osteosarcoma is rare — only around 1,000 people are diagnosed in the United States each year. Osteosarcoma most commonly occurs in children, teenagers and young adults between the ages of 10 and 30. It is slightly more common in boys and young men. There is a peak incidence of osteosarcoma during the adolescent growth spurt. It is very rare in children under 5 years old.

What causes osteosarcoma?

The exact cause is still unknown. Osteosarcoma develops when healthy cells responsible for making new bone experience changes in their DNA. These DNA changes tell the cells to make abnormal bone. This results in a tumor that invades and destroys surrounding healthy bone and surrounding tissue.

Can osteosarcoma be prevented?

It cannot be prevented. However, there are certain risk factors to be aware of. Osteosarcoma risk factors include: ● Bone disorders (Paget’s disease and fibrous dysplasia) ● Exposure to radiation (for example, previous cancer treatment) ● Rare, inherited disorders (hereditary retinoblastoma, Bloom syndrome, Li-Fraumeni syndrome, Rothmund-Thomson syndrome and Werner syndrome)

What are the symptoms?

People with osteosarcoma may have a variety of symptoms, including: ● Pain in and around a bone that becomes persistent and severe over time ● Swelling near a bone ● Limping and/or inability to lift or use a limb ● Bone injury/fracture from minor trauma If you or your child is experiencing any of the above symptoms, contact your doctor.

How is osteosarcoma diagnosed?

The diagnosis of osteosarcoma can only be definitively made with a biopsy of the affected area. Thanks to advanced imaging technology, doctors can see — with precision — where the abnormality is located in the body and help guide the biopsy. Once a biopsy confirms the diagnosis of osteosarcoma, a variety of other tests may be ordered to further determine the extent of the tumor. These may include: ● X-Ray ● Computed tomography (CT) scan ● Magnetic resonance imaging (MRI) ● Positron emission tomography (PET) scan ● Additional blood tests

Can osteosarcoma spread?

Yes, osteosarcoma can metastasize, or spread, to other areas of the body, most commonly to the lungs. Osteosarcoma that spreads to the lungs happens when tumor cells travel to the lungs through the bloodstream. But since our blood always travels to the lungs to provide oxygen to our blood (and not all cancers spread to the lungs first), there must be additional reasons that osteosarcoma is so prone to lung metastases. This is an area of active research.

What are the treatment options for osteosarcoma?

Current therapy for osteosarcoma almost always includes the combination of a standard chemotherapy treatment and surgery. Most commonly, chemotherapy is given for several months before surgery and is continued after the patient has recovered from their surgery. The type of surgery performed can vary, but usually includes limb-preservation surgery. Following recovery from surgery, patients begin physical rehabilitation as part of their recovery process.

What should I know about clinical trials?

Clinical trials are available, if and when a patient recurs, following standard treatment. These trials provide patients access to novel treatment methods and drug therapies that are being developed to treat osteosarcoma. Depending on your individual case, you may be eligible to participate in one. The Osteosarcoma Institute is pleased to connect you with a free and confidential clinical trial matching service . Most clinical trials for osteosarcoma include newer “targeted therapy drug” or combinations with immunotherapy.

What are treatment side effects?

With any cancer treatment, there are side effects. This is also true for osteosarcoma treatment. Surgery often involves use of an internal prosthesis and rarely an external prosthesis. Physical therapy will be provided as you heal to help guide rehabilitation and ensure strength and movement are regained in the safest way possible. Chemotherapy side effects can include hair loss, nausea, fatigue, weakness, loss of appetite and weight loss. These side effects will resolve when chemotherapy is completed.

What is the outlook for people with osteosarcoma?

The outlook depends on many factors, including the location and size of the tumor, whether the cancer has spread and the person’s age and overall health. For more information on osteosarcoma survival rates, click here.

Why is more research needed?

There have been no improvements in survival of osteosarcoma patients for more than 30 years. Osteosarcoma is complex, and more research is needed. For a brief history of osteosarcoma treatment, click here . Areas of research include gene therapy, targeted drug therapy and immunotherapy.

Support Osteosarcoma Research in Memory of Sam Shumadine

Donate today in loving memory of Sam Shumadine.

Sam’s Story

Samuel Conrad Shumadine, 17, passed away on January 3, 2024, at home in Norfolk, Virginia, after a fearless battle with osteosarcoma. Diagnosed in April 2022, Sam faced an aggressive and resistant cancer, but he never let it define him.

A proud member of the Norfolk Academy community since first grade, Sam embraced every aspect of school life. He thrived in the classroom, forming strong bonds with teachers and friends, and his competitive spirit shined on the tennis courts, soccer and lacrosse fields, and basketball courts. Even when he could no longer play, he remained a dedicated teammate—leading, managing, and cheering from the sidelines with unwavering enthusiasm. His natural leadership was evident, most recently as an executive member of the Upper School Council.

More than anything, Sam cherished his friendships. His optimism, kindness, and mischievous smile were infectious, making him a magnetic presence among classmates. He had a rare ability to uplift those around him, bringing laughter and light to even the hardest moments.

Beyond school, Sam was an avid Virginia Cavaliers, San Francisco 49ers, and Miami Heat fan who could talk sports for hours. He lived life to the fullest—dancing at parties, listening to music, traveling the world, spending summers at Camp Seagull, and making memories at Sandbridge Beach with family.

Though his time was too short, Sam’s impact was immeasurable. His legacy now lives on through the Shumiestrong Osteosarcoma Science Fund, ensuring that future osteosarcoma patients have the hope and breakthroughs Sam so deeply wished for.

Thank You from the Shumadine Family!

Sam’s final wish was to see his savings go toward cancer research—toward something that could make a difference for others facing osteosarcoma. Honoring his request, we established the Shumiestrong Osteosarcoma Science Fund at the OSI, an organization fully dedicated to advancing osteosarcoma research.

In its first year, Sam’s fund supported a Phase II clinical trial led by Dr. Katie Janeway at Dana-Farber Cancer Institute—one of Sam’s own doctors. Now, because of Sam, donations to his fund, and other generous supporters the trial is now fully funded, and around 63 children, teens, and young adults have access to a trial that could change the future of osteosarcoma treatment.

But we’re just getting started. Together with Sam’s local oncologist, our family has chosen to support a new, cutting-edge study led by Dr. Robin Parihar at Baylor College of Medicine. This research is focused on reducing toxicity and improving the effectiveness of CAR-T therapies, laying the groundwork for a future clinical trial in osteosarcoma and neuroblastoma—offering patients safer, more effective treatment options.

We can’t do this without you. When you donate to the OSI in Sam’s memory, 100% of your gift goes directly to osteosarcoma research—fueling the next breakthrough and bringing hope to families who need it most.

CLICK HERE to learn more about the trial and how how researchers are bridging gaps in precision treatment for osteosarcoma.

Shumiestrong

One of Sam’s friends came up with Shumiestrong after Sam’s diagnosis, and his friends, tennis teammates, and classmates continue to wear the navy and light blue Shumiestrong t-shirts in Sam’s memory.

Osteosarcoma Statistics

Osteosarcoma is the most common childhood bone cancer.

No new treatments have been approved for osteosarcoma patients in 40 years.

1 in 3 children with osteosarcoma will not survive.

Frequently Asked Questions

What is osteosarcoma?

Osteosarcoma is a type of bone cancer that originates in cells of the bone. The word “osteosarcoma” comes from the Greek words sarc, meaning fleshy substance, and oma, meaning growth. Osteo adds bone-like to the word sarcoma. It can occur anywhere along the skeleton, but the most common sites are in longer bones, for instance around the knee (distal femur and proximal tibia) and shoulder (proximal humerus).
How common is osteosarcoma?

Osteosarcoma is rare — only around 1,000 people are diagnosed in the United States each year. Osteosarcoma most commonly occurs in children, teenagers and young adults between the ages of 10 and 30. It is slightly more common in boys and young men. There is a peak incidence of osteosarcoma during the adolescent growth spurt. It is very rare in children under 5 years old.
What causes osteosarcoma?

The exact cause is still unknown. Osteosarcoma develops when healthy cells responsible for making new bone experience changes in their DNA. These DNA changes tell the cells to make abnormal bone. This results in a tumor that invades and destroys surrounding healthy bone and surrounding tissue.
Can osteosarcoma be prevented?

It cannot be prevented. However, there are certain risk factors to be aware of. Osteosarcoma risk factors include:
● Bone disorders (Paget’s disease and fibrous dysplasia)
● Exposure to radiation (for example, previous cancer treatment)
● Rare, inherited disorders (hereditary retinoblastoma, Bloom syndrome, Li-Fraumeni syndrome, Rothmund-Thomson syndrome and Werner syndrome)
What are the symptoms?

People with osteosarcoma may have a variety of symptoms, including:
● Pain in and around a bone that becomes persistent and severe over time
● Swelling near a bone
● Limping and/or inability to lift or use a limb
● Bone injury/fracture from minor trauma
If you or your child is experiencing any of the above symptoms, contact your doctor.
How is osteosarcoma diagnosed?

The diagnosis of osteosarcoma can only be definitively made with a biopsy of the affected area. Thanks to advanced imaging technology, doctors can see — with precision — where the abnormality is located in the body and help guide the biopsy. Once a biopsy confirms the diagnosis of osteosarcoma, a variety of other tests may be ordered to further determine the extent of the tumor. These may include:
● X-Ray
● Computed tomography (CT) scan
● Magnetic resonance imaging (MRI)
● Positron emission tomography (PET) scan
● Additional blood tests

Can osteosarcoma spread?

Yes, osteosarcoma can metastasize, or spread, to other areas of the body, most commonly to the lungs. Osteosarcoma that spreads to the lungs happens when tumor cells travel to the lungs through the bloodstream. But since our blood always travels to the lungs to provide oxygen to our blood (and not all cancers spread to the lungs first), there must be additional reasons that osteosarcoma is so prone to lung metastases. This is an area of active research.
What are the treatment options for osteosarcoma?

Current therapy for osteosarcoma almost always includes the combination of a standard chemotherapy treatment and surgery. Most commonly, chemotherapy is given for several months before surgery and is continued after the patient has recovered from their surgery. The type of surgery performed can vary, but usually includes limb-preservation surgery. Following recovery from surgery, patients begin physical rehabilitation as part of their recovery process.
What should I know about clinical trials?

Clinical trials are available, if and when a patient recurs, following standard treatment. These trials provide patients access to novel treatment methods and drug therapies that are being developed to treat osteosarcoma. Depending on your individual case, you may be eligible to participate in one. The Osteosarcoma Institute is pleased to connect you with a free and confidential clinical trial matching service. Most clinical trials for osteosarcoma include newer “targeted therapy drug” or combinations with immunotherapy.
What are treatment side effects?

With any cancer treatment, there are side effects. This is also true for osteosarcoma treatment. Surgery often involves use of an internal prosthesis and rarely an external prosthesis. Physical therapy will be provided as you heal to help guide rehabilitation and ensure strength and movement are regained in the safest way possible. Chemotherapy side effects can include hair loss, nausea, fatigue, weakness, loss of appetite and weight loss. These side effects will resolve when chemotherapy is completed.
What is the outlook for people with osteosarcoma?

The outlook depends on many factors, including the location and size of the tumor, whether the cancer has spread and the person’s age and overall health. For more information on osteosarcoma survival rates, click here.
Why is more research needed?

There have been no improvements in survival of osteosarcoma patients for more than 30 years. Osteosarcoma is complex, and more research is needed. For a brief history of osteosarcoma treatment, click here. Areas of research include gene therapy, targeted drug therapy and immunotherapy.