Posts Tagged ‘X-ray’

How to treat bone cancer by radiotherapy?

Bone Cancer is the cancer that begins in the bone. Primary bone cancer is relatively uncommon with secondary or metastatic cancer. This is cancer that occurs initially in another organ and then spreads to bone tissue.

The most common types of bone cancer includes:
- Osteosarcoma,
- Ewing’s sarcoma,
- Chondrosarcoma,
- Malignant fibrous histiocytoma,
- Fibrosarcoma,
- Chordoma

Diagnosis of bone cancer:
- Check for a complete medical history.
- A description of your symptoms can help.
- A complete physical examination can help find the cause of your symptoms.
- Testing your muscle strength.
- Sensation to touch
- Reflexes
- Certain blood tests
- Plain X-rays
Benign tumors are more likely to have a smooth border while malignant tumors have a ragged border on X-ray images.

- A CT scan
- An MRI (magnetic resonance imaging).
- Positron emission tomography (PET) scan.
- An angiogram, which is an x-ray of blood vessels.
- A bone scan.
- Obtain a biopsy sample of the tumor.
- Get examined in the laboratory by a pathologist.
- Determine what kind of tumor it is.

What is the treatment for bone cancer?
The best treatment is based on:
- the type of bone cancer,
- the location of the cancer,
- how aggressive the cancer is,
- whether or not the cancer has invaded surrounding or distant tissues (metastasized).

The main types of treatment for bone cancer:
- Surgery,
- Chemotherapy,
- Radiation therapy
- Cryosurgery
These can be used either individually or combined with each other.

Process of Radiotherapy
- The radiation therapy uses high-energy X-ray aimed at the site of the cancer.
- This is to try to kill the cancer cells.
- This treatment is given in small doses daily over a period of days to months.
- Radiation therapy can be used either before or after a potential surgery.
- It depends on the specific type of cancer.
- These high-energy rays are used to damage cancer cells and stop them from growing and dividing.
- A specialist in radiation therapy is called a radiation oncologist.

Types of Radiation Therapy are:
Radiation therapy is a local treatment. It affects cancer cells only in the treated area.
- Radiation can come from a machine (external radiation).
- It can also come from an implant (a small container of radioactive material) placed directly into or near the tumor (internal radiation).
- Some patients need both kinds of radiation therapy.

External Radiation Therapy
- It is usually given on an outpatient basis in a hospital or clinic 5 days a week for a number of weeks.
- Patients are not radioactive during or after the treatment.

Internal Radiation Therapy
- The patient stays in the hospital for a few days.
- The implant may be temporary or permanent.
- The level of radiation is highest during the hospital stay.
- Once an implant is removed, there is no radioactivity in the body.
- The amount of radiation in a permanent implant goes down to a safe level before the patient leaves.

Other facts
- The most common type of radiation treatment is called external-beam radiation therapy.
- Radiation therapy is most often used for patients with a tumor that cannot be removed by surgery.
- This is also used where patient may have cancer cells remaining after surgery.
- Radiation therapy may be done before surgery to shrink the tumor also.
- Radiation therapy makes it possible to do less extensive surgery, often preserving the arm or leg.
- Radiation therapy may also be used to relieve pain for people with advanced bone cancer.
- For patients with Ewing’s sarcoma, radiation therapy may be combined with chemotherapy and surgery.

Side effects from radiation therapy may include:
- fatigue
- mild skin reactions
- upset stomach
- loose bowel movements
Most side effects go away soon after treatment is finished.

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The Skeletal System – what is it and why is it important for health ? Part 6

The skeletal system acts as a framework for the body and it protects the internal organs. There are some problems associated with the skeletal system, some of which needs immediate action and some needs care and precautions.

- Fractured Vertebra
If a person is experiencing sudden pain following an injury to the back, loss of bladder or bowel control, numbness, tingling or difficulty in moving limbs then these can be the symptoms of a fractured vertebrae which is diagnosed by an x-ray. Seek medical attention immediately.

- Fracture
If a person is experiencing severe pain with heavy swelling, difficulty in movement, black and blue discoloration or mishapen limbs then these can be the symptoms of a fracture and an x-ray should be done immediately. Seek medical attention immediately.

- Infected molar
If a person is experiencing an ear pain then it can be the symptom of an infected molar so you need to check it out with the dentist.

- Gout
If a person is experiencing a big toes which is twice its size and angry red and painful then it can be the symptom of gout where the uric acid is deposited in the joints of the body. A blood test and medication should be taken.

- Slipped disc
If a person is experiencing a bad back problem to an extent that it is killing you then it can be the symptom of a slipped disc which can be confirmed by an x-ray.

- Sciatica
If a person is experiencing a radiating pain along leg or foot, pins and needles and it gets worse if you are sitting for long hours, walking, running, stairs climbing or straightening the leg then these could be the symptoms of sciatica which is diagnosed by a X-ray and MRI. It often improves by physiotherapy and painkillers and by keeping a check on your sitting, sleeping and working patterns. Surgery is the last step.

- Tumor
If a person is experiencing a swelling in bone then it can be the symptom of a tumor and one should get the x-ray done.

- Spondylitis
If a person is experiencing a hurt neck then it can be the symptom for spondylitis that is the inflammation of one or more vertebrae or spondylosis which is the stiffening of a joint in the spine and it can be diagnosed by x-ray or MRI and treated by physiotherapy.

- Osteoporosis
If a person is experiencing that his or her bones break very easily even if it is a small injury then it can be the symptom of osteoporosis and you should have a bone scan done.

- Stress fracture or Muscle strain
If a person is experiencing a nagging pain which worsens over a week and it gets even worse when you exercise then it could be the symptom of a stress fracture or a muscle strain and you should get an x-ray done.

- Infection or fracture
If a person is experiencing too much pain in the joint which is combined by fever or rash then it could be the symptom of an infection or fracture and you should get an x-ray done.

How is Leukemia diagnosed ?

Leukemia can be diagnosed with a variety of tests, and understanding what each test is and what it looks for can make the tests a little less confusing. Doctors sometimes find leukemia after a routine blood test. If you have symptoms that suggest leukemia, your doctor will try to find out what’s causing the problems. Your doctor may ask about your personal and family medical history.

- Physical Examination
An exam is much like any doctor’s appointment; the doctor will take a detailed medical history and thoroughly examine the whole body.
- Blood Tests
To diagnose leukemia, a number of blood tests are performed. These tests are used to evaluate the type and quantity of blood cells that are present, the blood chemistry, and other factors.
- Full blood count
It is used to establish the numbers of different blood cell types in the circulation. A low number of red or white blood cells is described as anemia or leukopenia, respectively.
- Bone Marrow Biopsy
A biopsy takes a small sample of bone marrow tissue from the body. The doctor asks the patient to lie on his or her side and nurses clean the biopsy site with iodine or alcohol. After the site is cleaned, the biopsy site is numbed with a local anesthetic. The doctor uses either a very fine needle to draw out only bone marrow tissue, or a thicker needle to take a small sample of bone and bone marrow. The bone marrow sample is examined under a microscope to check for leukemia cells.
- Cytogenetics
It is a newer type of testing for leukemia. Cytogenetic testing uses a sample taken from a blood draw or a bone marrow or lymph node biopsy. The sample’s chromosomes are microscopically examined for abnormalities that indicate damage to the cells’ DNA.
- Spinal tap
The doctor uses a long, thin needle to remove fluid from the lower spine. The procedure takes about 30 minutes and is performed with local anesthesia. You must lie flat for several hours afterward to keep from getting a headache.
- Chest x-ray
An x-ray can show swollen lymph nodes or other signs of disease in your chest.
- CT scan of the head, chest, and belly, to find out whether leukemia has spread there.
- Lumbar puncture is to find out whether leukemia cells are in your cerebrospinal fluid (CSF).
- Differential blood count (DBC)
It is used to determine the relative proportion of blood cell types within the bloodstream. In particular, the percentage of immature leukemic “blast” cells is noted.
- Hematocrit assay
It is used to determine the proportion of the blood that is occupied by erythrocytes (red blood cells). In adult men, normal is about 46% (39.8–52.2) and in adult women, it is about 40.9% (34.9–46.9).