Malignant bone tumors are further divided into primary and secondary. Tumor metastasis from other tissues and organs to bone through blood circulation and lymphatic system is secondary. The main symptoms are local pain and fever. What are the initial symptoms of bone cancer? Some manifest as lumps and pain. The tumor grows slowly and rarely invades the surrounding tissues. It is an expansive growth with well defined borders. Generally, there is no periosteal reaction. The border of surrounding soft tissue mass is clear; malignant bone tumor pain is obvious, pain at night, accompanied by local swelling and pressure,

Tumor grows rapidly, function is lost, and activity of the affected limb is affected due to pain or mass. For example, tumors of the upper end of the humerus can affect joint movement in the shoulder, and spinal tumors can limit spinal motion and stiffness, or combine with scoliosis. However, osteosarcoma remains a tumor with a high morbidity, mortality, and disability rate, and surgery, chemotherapy, immunotherapy, and a combination of traditional Chinese and Western medicine should improve the survival time of patients to a greater extent. Gradual growth of cancer in the skull and nasal cavity will compress the brain and nasal tissues, leading to brain compression and symptoms of poor breathing;

Pelvic tumors can compress the rectum and bladder, leading to difficulty in urination; spinal tumors will compress the spinal cord, causing paralysis, and gradually form a mass, and the pain is characterized by persistent pain, which is aggravated at night, and the first phase of the disease should be carefully examined at the point of pain pressure, to see if there is any mass; especially close to the knee joints

Many patients delay their condition due to the treatment of "arthritis", which warrants vigilance. Commonly used drugs include adriamycin and high-dose methotrexate, but the selectivity of the drug is not strong, and the cycle of the tumor cell division is not synchronized, which affects the full effect of chemotherapy. Local chemotherapy, including continuous intra-arterial chemotherapy and local perfusion, can be used for fast-growing bone tumors. The midline is used as a preliminary test to determine the presence of a tumor! But it cannot be diagnosed as benign or malignant, even if it is a tumor! Doctors look at the movie and rely mostly on their clinical experience!