Bone tumor is an abnormal cell growth within the bone. In most cases, tumors appear in the bones around the knee, the upper legs, and the upper arms. Mostly bone tumors are benign (non-cancerous). Some are malignant (cancerous). Benign tumors are usually not life threatening.

Symptoms

• Bone pain
• Local swelling
• Bone swelling
• Weight loss
• Anemia
• Bone fractures

Symptoms usually do not show up until the disease is in advanced stage but a doctor should be contacted regarding the following symptoms:
If a new or growing lump appears, increasing abdominal pain, and/or blood in stools or in vomit.

Diagnosis

• X-rays
• Computed tomography (CT) scan
• Magnetic resonance imaging (MRI) scan
• Biopsy

Treatment

Generally Tumor is removed using surgery. Chemotherapy and radiotherapy is used in combination with surgery.

• Surgery
  Limb salvage surgery is done to remove tumor and part of the bone removed is replaced by bone graft.
  Amputation involves removal of whole body part when tumor is large and blood vessel and nerves are involved.
  

• Chemotherapy is often used to kill tumor cells when they spread in to the blood stream. Chemotherapy is generally used when tumors have a high possibility of spreading.
  
  
• Radiotherapy is often used to shrink tumor as much as possible before surgery.