After bladder
cancer has been diagnosed, tests are done to find out if cancer cells have
spread within the bladder or to other parts of the body.
The process used to find out if cancer has spread within the bladder lining and muscle or to other parts of the body is called staging. The information gathered from the staging process determines the stageof
the disease. It is important to know the stage in order to plan treatment. The
following tests and procedures may be used in the staging process:
·
CT scan (CAT
scan): A procedure that makes a series of detailed
pictures of areas inside the body, taken from different angles. The pictures
are made by a computer linked to an x-raymachine. A dye may be injected into a vein or swallowed to help the organs or tissues show up more clearly. This procedure is also called computed
tomography, computerized tomography, or computerized axial tomography.
·
MRI (magnetic resonance imaging): A procedure
that uses a magnet, radio waves, and a computer to make a series of detailed pictures of areas inside the
body. This procedure is also called nuclear magnetic resonance imaging (NMRI).
·
Chest x-ray : An x-ray of the organs and bones inside the chest. An x-ray is a
type of energy beam that can go through the body and onto film, making a
picture of areas inside the body.
·
Bone scan : A procedure to check if there are rapidly dividing cells, such as cancer cells, in the bone. A very small amount of radioactive material is injected into a vein and travels through the bloodstream.
The radioactive material collects in the bones and is detected by a scanner.
·
Through the lymph system. Cancer invades the lymph system and travels through the lymph vessels to other places in the body.
·
Through the blood. Cancer invades the veins and capillaries and travels through the blood to other places in the body.
When cancer cells break away from the primary (original) tumor and
travel through the lymph or blood to other places in the body, another (secondary) tumor may
form. This process is called metastasis. The secondary (metastatic) tumor is the same type of cancer as the
primary tumor. For example, ifbreast cancer spreads to the bones, the cancer cells in the bones are actually
breast cancer cells. The disease is metastatic breast cancer, not bone cancer.
In stage 0, abnormal cells are found in tissue lining the inside of the bladder. These abnormal cells may become cancer and spread into nearby normal tissue. Stage 0 is divided into stage 0a
and stage 0is, depending on the type of the tumor:
·
Stage 0a is
also called papillary carcinoma, which may look like tiny mushrooms growing from the lining of the bladder.
·
Stage 0is is also called carcinoma in situ, which is a flat tumor on
the tissue lining the inside of thebladder.
In stage I, cancer has formed and spread to the layer of connective tissue next to the inner lining of thebladder.
In stage III, cancer has spread from the bladder to the layer of fat surrounding it and may have spread to the reproductive organs (prostate, seminal vesicles, uterus, or vagina).
·
Recurrent Bladder Cancer
·
Recurrent bladder cancer is cancer that has recurred (come back) after it has been treated. The cancer may come back in
the bladder or in other parts of the body.
here are different
types of treatment for patients with bladder cancer.
Different types of treatment are available for patients with bladder cancer. Some treatments arestandard (the currently used treatment), and some are being tested in clinical trials. A treatment clinical trial is a research study meant to help improve current treatments or obtain information on new
treatments for patients with cancer. When clinical trials show that a new treatment is better than the
standard treatment, the new treatment may become the standard treatment.
Patients may want to think about taking part in a clinical trial. Some clinical
trials are open only to patients who have not started treatment.
·
Transurethral resection (TUR)
with fulguration: Surgery in which a cystoscope (a
thin lighted tube) is inserted into the bladder through the urethra. A tool with a small wire loop on the end is then used to remove the
cancer or to burn the tumor away
with high-energy electricity. This is known as fulguration.
·
Radical cystectomy: Surgery to remove the bladder and any lymph nodes and nearby organs that contain cancer. This surgery may be done when the bladder cancer
invades the muscle wall, or when superficial cancer involves a large part of the bladder. In men, the nearby
organs that are removed are the prostate and the seminal vesicles. In women, the uterus, the ovaries, and part of the vagina are removed. Sometimes, when the cancer has spread outside the
bladder and cannot be completely removed, surgery to remove only the bladder
may be done to reduce urinarysymptoms caused by the cancer. When the bladder must be removed, the surgeon creates another way for urine to leave the body.
·
Segmental cystectomy: Surgery to remove part of the bladder. This surgery may be done for
patients who have a low-grade tumor that has invaded the wall of the bladder but is limited to one
area of the bladder. Because only a part of the bladder is removed, patients
are able to urinate normally after recovering from this surgery.
Even if the doctor removes all the cancer that can
be seen at the time of the surgery, some patients may be given chemotherapy after surgery to kill any cancer cells that are left. Treatment given after surgery, to lower the risk that
the cancer will come back, is called adjuvant therapy.
Radiation
therapy is a cancer treatment that uses high-energy x-rays or other types of radiation to kill cancer cells or keep them from growing. There are two types
of radiation therapy. External radiation therapy uses a machine outside the body to send radiation toward the
cancer. Internal radiation therapy uses a radioactive substance sealed in needles, seeds, wires, or catheters that are placed directly into or near the cancer. The way the
radiation therapy is given depends on the type and stageof
the cancer being treated.
Chemotherapy is a cancer treatment that uses drugs to stop the growth of cancer cells, either by killing the cells or by
stopping them from dividing. When chemotherapy is taken by mouth or injected into avein or muscle, the drugs enter the bloodstream and can reach cancer cells
throughout the body (systemic chemotherapy). When chemotherapy is placed directly into the cerebrospinal fluid, an organ, or a body cavity such as the abdomen, the drugs mainly affect cancer cells in those areas (regional chemotherapy). Bladder cancer may be treated with intravesical (into
the bladder through a tube inserted into the urethra) chemotherapy. The way the
chemotherapy is given depends on the type and stage of the cancer being
treated.
Biologic therapy is
a treatment that uses the patient’s immune system to fight cancer. Substances made by the body or made in a laboratory are used to boost, direct, or restore the body’s natural defenses
against cancer. This type of cancer treatment is also called biotherapy or
immunotherapy.
No comments:
Post a Comment