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Anal cancer is a type of cancer that arises in the anal canal, the part of the body from which stool passes following storage in the rectum. Anal cancer is an extremely rare disease. In this disease, abnormal cells multiply out of control and also perform functions that normal cells in that area are not supposed to perform. Depending on the stage or extent of the disease, it can cause symptoms that vary from mild to severe. There are several modalities of treatment and a patient and his or her cancer are treated based on several factors.
In some cases, a combination of different anal cancer treatments may be used at the same time to control the cancer more effectively. Anal cancer originates from different causes and has different risk factors. As anal cancer advances to its final stage, it can present serious complications. Anal cancer is a cancer that can spread to other parts of the body and can be difficult to treat in such cases. However, anal cancer can be prevented by adopting a healthy lifestyle, avoiding smoking, and treating infections, especially those that are sexually transmitted.
What Is Anal Cancer?
Anal cancer is a type of cancer that originates from the tissues within the anal canal, a small opening where stools leave the body at the end of the bowel. Although anal cancer is less common than other types of cancers affecting the gastrointestinal system, it can still pose significant risks to a person's overall health if it goes undiagnosed or untreated.
The tissues that make up the anal canal—the squamous cells—are where anal cancer starts. The squamous cells develop into tumors when they lose control over their growth and begin proliferating in inappropriate ways. Once a tumor has developed, it can metastasise (spread from its original location) to nearby structures, such as other organs and lymph nodes, or, in advanced cases, to far-away structures (e.g., liver or lungs).
There are different types of anal cancer based on the type of cell from which anal cancer originates.
Squamous Cell Carcinoma
When the squamous cells of the anal canal multiply too quickly, squamous cell carcinoma is formed, as the anal canal is composed of squamous cells. Squamous cell carcinoma is one of the most common forms of anal cancer and is formed in the outer edges of the anal canal.
Cloacogenic Carcinoma
Cloacogenic carcinoma develops around the outside of the anus and joins the lower rectum.
Basal Cell Carcinoma
Basal cell carcinoma is a rare anal cancer that develops only on skin that has been exposed to the sun.
Melanoma
Melanoma is a type of skin cancer that develops from pigment-producing cells located in both the skin and the lining of the anus.
Adenocarcinoma
Adenocarcinoma is a rare anal cancer that develops in the glandular cells of the anal canal, which are responsible for the production of mucus in the anal canal.
Squamous Cell Carcinoma in Situ
Squamous Cell Carcinoma in situ is another name for Bowen’s disease. Bowen’s disease is a form of skin cancer that occurs on the surface of the anal canal.
There are different stages of anal cancer. The range of stages for anal cancer goes from Stage 0 through Stage IV. The various stages are as follows:
Stage 0: In this stage, there are abnormal (but have not yet formed a tumor) cells in the inner layers of the anus, which can form a tumor in the future. This is also referred to as high-grade squamous intraepithelial lesion (HSIL).
Stage I: This is a tumor that does not exceed two (2) centimetres in size.
Stage II: This is the stage in which there is a tumor that is greater than two (2) centimetres in size, but has not yet spread to any lymph nodes or other areas of the body.
Stage III: In this stage, there are indications of cancerous cells having spread to either nearby lymph nodes or other body organs of the victim. Stage III is further classified into three sub-stages, i.e. Stage IIIA, Stage IIIB, and Stage IIIC. Stage IIIA indicates that the cancerous cells have spread to either the anus or the groin. Stage IIIB indicates that the cancerous cells have spread either to the bladder, urethra, or vagina. Stage IIIC indicates that the cancerous cells have spread to other surrounding internal organs.
Stage IV: This is the stage at which cancer is at its most aggressive state. Stage IV cancer is considered to be at its worst state, i.e. there may be either evidence of cancerous cells that have spread to distant lymph nodes or evidence of cancerous cells that have spread to other areas of the body.
How doctors treat anal cancer really depends on how far it’s spread. If they catch it early, they usually go with chemotherapy, radiation, or both together.
Radiation Therapy:
This treatment uses powerful X-rays or proton beams to go after cancer cells. You’re on a table while the medical team aims the beams right at the tumour. How long you need treatment depends on the cancer’s stage.
Chemotherapy:
Here, doctors rely on strong medicines that hunt down and kill cancer cells. Usually, they use more than one drug at the same time, and most are given through an IV.
If the cancer keeps growing or other treatments haven’t helped, surgery is the next step.
Abdominoperineal Resection:
This is a big operation. The surgeon removes your anus, rectum, and part of your bowel by making incisions in your belly and around your anus. They might also take out lymph nodes in the groin. Afterwards, you’ll have a permanent colostomy.
Colostomy:
During this procedure, the surgeon makes an opening in your abdomen, then brings the end of your colon out through it. Stool leaves your body through this opening, into a bag you wear outside.
The cost of treating anal cancer in India will vary according to the type of treatment that you choose to receive. Types of analytic cancer treatments are generally priced between $3,000 - $9,000 or more based on several factors, including location, type of cancer, stage of cancer, and hospital choice.
|
Type of Treatment |
Average Cost (USD) |
|
Surgery (Local Excision / APR) |
$3,500 – $6,500 |
|
Radiation Therapy |
$3,000 – $5,000 |
|
Chemotherapy (per cycle) |
$400 – $1,000 |
|
Chemoradiation (combined therapy) |
$5,000 – $8,000 |
|
Immunotherapy (advanced cases) |
$4,500 – $9,000 |
|
Targeted Therapy |
$4,000 – $7,500 |
Symptoms that are common to anal cancer include:
Anal cancer has a bunch of risk factors to watch out for.
HPV Infection
Human papillomavirus (HPV) spreads mostly through sex. If you have sex with someone who’s got HPV, your risk for anal cancer jumps.
Anal Intercourse
Having anal sex can raise your chances, too. It’s considered an unusual sexual activity, but it does make anal cancer more likely.
Weakened Immune System
People with weakened immune systems just tend to get sick more often. If your immunity is low, you’re at higher risk for all sorts of diseases—including cancers like anal cancer.
Smoking
Smoking doesn’t just mess with your lungs. The chemicals in cigarettes actually bump up your risk for anal cancer as well.
Age
This cancer is more common in older folks. Basically, your risk goes up as you get older.
History of Cancer
If you’ve had cancer before—especially in areas like your cervix or vagina—you’re more likely to get anal cancer too.
Multiple Sexual Partners
Having lots of sexual partners or partners who themselves have had many partners increases your risk. That’s because you’re more likely to pick up a sexually transmitted infection, which is a big risk factor for anal cancer.
Personal or Family History
If anal cancer runs in your family, or you’ve had it yourself, your chances go up. There’s a clear link between family history and getting the disease.
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