How long can osteosarcoma last?

Written by Zhang Ying Peng

Orthopedics

Updated on April 09, 2025

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Osteosarcoma, also known as osteogenic sarcoma, commonly occurs in adolescents, especially in children and teenagers under the age of 20. It is one of the most malignant tumors among bone tumors, with most patients dying within six months to a year. However, early detection and treatment can potentially extend survival. The survival period of osteosarcoma depends on the location of the tumor; the closer to the distal extremities, the longer the survival period after treatment; the closer to the trunk, even with treatment, the survival period is not very long.

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Written by Na Hong Wei

Orthopedics

50sec

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Is osteosarcoma a cancer?

If we are to speak strictly, osteosarcoma is not cancer. This is because cancer typically refers to malignant tumors of epithelial tissue, whereas osteosarcoma, like all sarcomas, is a malignant tumor that occurs in connective or muscle tissue. Therefore, their origins are different: osteosarcoma is not cancer; it is a malignant tumor that occurs in bone tissue, commonly found in the distal femur, proximal tibia, and proximal humerus. So, strictly speaking, osteosarcoma is a sarcoma, a malignant tumor that occurs in bone tissue. It is not what one would typically refer to as cancer, which usually pertains to epithelial tissues, such as in cases of skin cancer or breast cancer. Osteosarcoma is therefore classified as a sarcoma, not as cancer.

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Written by Na Hong Wei

Orthopedics

1min 7sec

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What are the symptoms of osteosarcoma?

The main symptom of osteosarcoma is localized pain, primarily at the distal end of the femur, the proximal end of the tibia, and the proximal end of the humerus. This pain tends to worsen continuously, with nighttime pain often more severe than during the day, which is a significant characteristic of osteosarcoma. The second symptom is the presence of a local mass, which is often spindle-shaped and generally located near a joint. This mass often leads to limited joint mobility, and the skin over the mass typically has a high temperature. Sometimes, it may also be accompanied by visible swelling of superficial veins. The third symptom involves systemic cachexia, which includes unexplained weight loss, generalized weakness, and even an anemic condition. The fourth point pertains to osteolytic osteosarcoma, which often leads to bone destruction, reduced bone strength, and consequently, even minor external forces can cause fractures. These are called pathological fractures. Thus, the symptoms of osteosarcoma generally include these four points.

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Written by Wang Cheng Lin

Orthopedics

56sec

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Osteosarcoma imaging manifestations

The radiological features of osteosarcoma start with an introduction to X-ray imaging. X-rays can show typical new bone formation and bone destruction, which are characteristic features of X-rays. Destruction of bone trabeculae can also be seen on X-rays. Additionally, the density of the tumor tissue increases, leading to a characteristic X-ray known as the Codman's triangle, which occurs when the tumor penetrates the bone and pushes up the periosteum, creating a unique image of Codman's triangle. The second examination includes CT scans and MRI, which are primarily used to determine the nature and extent of the bone tumor, and whether there is infiltration into the surrounding soft tissues. The third radiological examination is a nuclear bone scan, which is primarily important for determining whether the myeloma has metastasized to distant sites.

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Written by Wang Cheng Lin

Orthopedics

46sec

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Do osteosarcomas hurt?

The early symptoms of osteosarcoma include pain, which initially is intermittent. As the condition progresses, this intermittent pain gradually becomes constant, and the intensity of the pain is parallel to the severity of the osteosarcoma, meaning the more severe the osteosarcoma, the more intense the pain. Additionally, you can also feel a lump forming on the affected limb, and this lump is clearly tender to touch. The third symptom is the occurrence of a limp. This limp is due to pain, which prevents the patient from bearing weight and walking for extended periods. Lastly, all osteosarcomas present symptoms such as anemia, pathologic fractures, and a low-grade fever.

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Written by Guan Yu Hua

Orthopedic Surgery

1min 14sec

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During the treatment of osteosarcoma

Osteosarcoma is a highly malignant tumor of the bone, primarily presenting with pain, elevated skin ridges, and bulging veins. Radiological examination often reveals bone abnormalities, such as Codman's triangle and periosteal reactions due to sun exposure. If there is no metastasis in the early stages, limb amputation surgery can be performed, as well as limb-sparing surgeries involving devitalization and reimplantation or prosthetic implantation. Post-operative treatment involves high-dose chemotherapy, which can inhibit the growth of the bone tumor and extend the patient's survival time. There is a high probability of lung metastasis occurring in the early stages of the disease. If metastasis occurs, the survival time may be significantly reduced. Early diagnosis of this disease is crucial, and it must be treated with chemotherapy as early as possible. With the rapid development of chemotherapy, the five-year survival rate for osteosarcoma can increase to over 50%. Thus, early detection, early treatment, early surgery, followed by chemotherapy and radiotherapy are essential to prolong the patient's survival time.