Symptoms
The most common symptoms with bone cancer is pain. Pain usually stays for weeks or months before patient seeks help. Pain may gradually increases as the size
of tumor get bigger. Other associate symptoms can be fatigue, anemia, fever and weight loss.

Treatment
In most of the cases, treatment for bone tumors are usually combination of radiation, chemotherapy and surgery.

Risk factors and causes of bone cancer
  1. As far as the age is concerned, bone cancer is more common in younger people, however, Osteosarcoma is common among age of 60's or more.
  2. Injuries and knocks can cause bone cancer, but there is no strong evidence for that.
  3. Exposure to radiation in the past as a part of cancer treating could have an impact at present. This happens because the normal cell exposure can make the
    good cells turn into tumor form.
  4. Bone diseases, like Paget’s disease of the bone, will probably increase risk of getting an Osteosarcoma.
  5. Genetic factors like Li-Fraumeni syndrome runs in families.
  6. Ethnicity factor may also play a major role in bone cancer. A study on Ewing’s sarcoma proved that Americans are more prone around age of 30 years old.
  7. Occupational factors such as toxic substances can also play a major role in bone tumor.

Chemotherapy and radiotherapy treatment options for bone tumors
Ewing's sarcoma is treated by chemotherapy and radiotherapy. There are number of chemotherapy treatment options for  bone tumors. If the respond due to
chemotherapy would be greater than 90% necrosis, then a better prognosis s expected. Medications are prescribed based on bone density and the expected bone
loss.

Surgical treatment
Amputation is being considered if all previous measures fail, the amputation can be above or below knee, above or below elbow, or the entire limb. It all depends upon
the radiographic results that took place after every treatment attempt.



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Bone is a strong and tough connective tissue with major functions of
protecting our internal organs, muscles and providing locomotions.
Bone tumors are classified into two categories,
Primary Tumors, and
Secondary Tumors. Primary tumors are the bone cancers that are
originated from bone itself and are very rarer. Secondary tumors are
metastatic bone cancers that are originated or spread from other sites
such as prostate cancer, kidney cancer, breast cancer, etc. Secondary
bone tumors are 50 to 100 times more popular compare to primary one.
In most cases, bone cancers are severe in pain and need lots of therapeutic
strategies.

Primary Bone Tumors can be divided to bone cancer or benign tumor:
Malignant Bone Tumors
Malignant bone tumors are rare when compared to benign tumors. Malignant bone tumors are cancerous, and are able to metastasize  
or spread. There are 3 classes of malignant bone tumors:
  1. Osteosarcoma: these malignant tumors develop in arms, legs, and pelvic bones. They usually develop during ages of 10 and  30
    years old, and only about 10% of cases develop in elderly people.
  2. Chondrosarcoma: as the term Chondro refers to cartilage cells, Chondrosarcoma is the second most common form of malignant
    bone tumors...
  3. Ewing’s Sarcoma: it occurs on the mid portion of the long bones like femur...

Benign Bone Tumors
Benign tumors are localized. They are not cancerous and are not able to spread. The following are the different types of benign bone
tumors:
  1. Osteochondroma: is more common in people under age of 20.
  2. Giant cell tumor: affects legs and less common.
  3. Osteoid osteoma: occurs in early 20's.
  4. Osteoblastoma: appears in spine and long bones.
  5. Enchondroma: usually appears in bones of hand and feet. It often has no symptoms. It is the most common type of hand tumor.

Secondary Bone Tumors are metastasized or originated from other organs such as prostate cancer, kidney cancer, breast cancer, etc.
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