Bone tumor

Sometimes a lump grows inside a bone.

This growth can cause pain. It can even make a bone break.

Some growths are not sick. These are called benign. Other growths are sick. These are called cancer.

Cancer can start in the bone. It can also move there from other parts. This can happen from the lungs or breasts.

Doctors use special tools to help. They take pictures with X-rays. They may also use blood tests.

Doctors can use surgery to help. They can also use special medicine.

These tools help people get better.

A bone tumor is an abnormal growth of tissue.

This growth can happen inside a bone. Doctors group these growths into two types.

Some are benign, which means they are noncancerous. Others are malignant, which means they are cancer. Some cancers start in the bone. We call these primary tumors. Other cancers start in different parts of the body. They may spread to the bones. These are called secondary tumors. This can happen from the lungs or breasts.

A tumor might cause a lump or pain. It can even cause a bone to break. Some people feel tired or have a fever. Sometimes, there are no signs at all.

Doctors use many tools to find a tumor. They use X-rays to see the bone. They might use a CT scan or an MRI. These tools take detailed pictures. A doctor may also use a biopsy. This is when they take a tiny piece of tissue to study it. Doctors use surgery or special medicine to help people get better.

A bone tumor is an abnormal growth of tissue inside a bone.

These growths are usually sorted into two main groups. Some are benign, which means they are noncancerous. Others are malignant, which means they are cancerous. Doctors also look at where the tumor started. A primary tumor begins in the bone or its own cells. A secondary tumor starts in a different organ and spreads to the skeleton. For example, cancers from the lungs or breasts can move to the bones. Secondary tumors are much more common than primary ones.

Tumors can cause many different signs in the body. A person might feel a lump or have pain. This pain can get worse at night or when resting. Sometimes, a tumor puts pressure on a nerve. This can cause neurological signs. A tumor might even cause a bone to break without an injury. Some people feel tired, have a fever, or lose weight. Other signs include nausea or anemia. In some cases, there are no symptoms at all. The tumor might only be found during a checkup for something else.

Finding a tumor requires many different medical tools. Doctors often start with a plain X-ray to see the bone. They might use a CT scan or an MRI for better pictures. A PET scan or bone scintigraphy can also help. Doctors may use blood tests to check things like kidney or liver function. They might even test urine for Bence Jones protein. To be sure what the tumor is, a doctor may perform a biopsy. This means taking a tiny piece of tissue to study it under a microscope.

We have known about bone tumors for a very long time. The earliest known case was found in South Africa. It was an osteosarcoma found in a foot bone. This bone belonged to someone who lived between 1.6 and 1.8 million years ago.

In the United States, the average five-year survival rate for bone and joint cancer is 68%. In 2020, the World Health Organization updated how we group these tumors. They now use categories like cartilage tumors and vascular tumors. This helps doctors understand the different ways these growths work.

Treating a bone tumor depends on many different factors. Doctors often work in teams with surgeons and specialists. For benign tumors, doctors might just watch them for changes. If a tumor causes pain, they might use surgery. Some surgeries save the limb by using a bone graft or artificial bone. For cancer, doctors might use chemotherapy or radiation therapy. Some doctors use thermal ablation to destroy tumor cells with heat. This is a less invasive way to treat certain benign tumors.

A bone tumor is an abnormal growth of tissue within the bone. These growths are generally classified into two main categories: benign and malignant. Benign tumors are noncancerous, while malignant tumors are cancerous. Doctors also categorize tumors based on their origin. A primary tumor begins in the bone or from bone-derived cells. A secondary tumor starts in a different part of the body and spreads to the skeleton. This spreading process is known as metastasis.

Secondary malignant bone tumors are quite common. They are estimated to be 50 to 100 times more common than primary bone cancers. These often originate from carcinomas in the lungs, breasts, prostates, kidneys, or thyroids. Primary tumors, however, start directly in the bone tissue. These can be benign or malignant. Common benign types include the osteochondroma, which is a type of hamartoma. Malignant primary tumors are called bone sarcomas. These include osteosarcoma, chondrosarcoma, Ewing sarcoma, and fibrosarcoma.

In 2020, the World Health Organization (WHO) revised how these tumors are classified. They now group them by the specific type of tissue involved. These categories include cartilage tumors and osteogenic tumors. There are also fibrogenic tumors and vascular tumors of bone. Other groups include osteoclastic giant cell-rich tumors and notochordal tumors. Doctors also look at mesenchymal tumors and hematopoietic neoplasms. This detailed classification helps medical teams choose the right treatment for each specific growth.

Symptoms of a bone tumor often result from the pressure the growth exerts on surrounding structures. A person might feel a physical lump or experience pain. This pain may increase as the tumor grows. It can often feel worse at night or while the person is at rest. If a tumor presses against a nerve, it can cause neurological signs. In some cases, a tumor may cause a pathologic fracture. This is a bone break that happens with little or no injury. Other general symptoms include fatigue, fever, weight loss, anemia, and nausea.

To find a tumor, doctors use several diagnostic tools. They often start with a plain X-ray. For more detail, they may use a CT scan or an MRI. A PET scan or bone scintigraphy can also provide important images. Doctors frequently use blood tests to check kidney and liver function. They might also check inflammatory markers or perform a serum electrophoresis. In some cases, urine is tested for Bence Jones protein. To confirm the diagnosis, a biopsy is often required. This involves taking a tissue sample through a needle or an incision for histological evaluation.

Treating bone tumors requires a multidisciplinary approach. This means a team of surgeons, radiologists, and oncologists works together. For benign tumors, doctors might simply observe them for changes. If the tumor causes pain, they may suggest surgical resection. For malignant tumors, treatment often combines surgery, chemotherapy, and radiation therapy. Some cancers, like Ewing's sarcoma, respond well to these treatments. However, others, such as chondrosarcoma, are less responsive. Surgeons may perform limb-sparing surgery to save a limb. This involves replacing the affected bone with a bone graft or artificial bone.

Newer technologies offer different ways to manage bone growths. Thermal ablation is a less invasive option for certain benign tumors. In radiofrequency ablation (RFA), a probe is used to apply heat to the tumor. This heat destroys the tumor cells under CT guidance. This method is often used for osteoid osteomas. Another method is cryoablation, which uses extreme cold. This can be easier to monitor on a CT scan than RFA. These techniques are also being explored to help reduce pain in patients with metastatic disease.

History shows that bone tumors have existed for a very long time. The earliest known case was an osteosarcoma found in a foot bone. This was discovered in South Africa in a bone from 1.6 to 1.8 million years ago. Today, medical science continues to study these growths to improve outcomes. In the United States, the average five-year survival rate for bone and joint cancer is 68%. While primary bone tumors are rare, making up about 0.2% of all tumors, research remains vital for patient care.