Gall Bladder Cancer
A rather rare form of cancer that is more recognizable across individuals from Central and South America, Central and Eastern Europe, Japan and Northern parts of India – in addition to being widely encountered in certain ethnic groups such Native American Indians and Hispanics – gall bladder cancer is a growing menace!.
If diagnosed very early, gall bladder cancer can be cured by surgical removal of the infected gall bladder – along with the part of the liver and the lymph nodes associated with the gall. Common symptoms that primarily lead to the identification of a Gall bladder cancer include abdominal pain, jaundice and vomiting.
The problem, however, is that symptoms often appear or get prone only after the cancer has spread to other organs such as the liver.
It’s the poor prognosis that leads to poor recovery rate – with cancer diagnosed only after symptoms becoming evident.
After the diagnosis, there is only about 3% chance for the patient surviving a term of 5 years!
Gall bladder cancer is often assumed to be related to building up of the gallstones, and thereby leading to calcification of the gallbladder (again, a rare condition, termed as porcelain gallbladder). While there are some studies that point at the possibility of developing gallbladder cancer among people with porcelain gall bladder, there are others who question the veracity of this belief.
Types of Gall Bladder Cancer
The most common type of gallbladder cancer, accounting for 90 percent of the cases. A specific type of cancer, adenocarcinoma begin in the gland-like cells that form the inner lining of the organs of the digestive tract.
2. Papillary Adenocarcinoma
A special subtype of adenocarcinoma – allows a better prognosis, or outlook in comparison to other types of gall bladder cancers. Papillary adenocarcinoma has less chances of spreading to nearby organs such as the liver or the lymph nodes.
Stages of Gall Bladder Cancer
- Beyond the inner lining of the gallbladder; crossing to a layer of tissue connected to the blood vessels – or to the muscle layer; or
- Beyond the muscle layer, permeating the connective tissue available around the muscle; or
- Beyond the thin layers of tissue that covers the gall bladder and/or reaching the liver and/or to one of the nearby organs (such as the stomach, small intestine, colon, pancreas, or bile ducts outside the liver).
- Lymph nodes present along large arteries – connecting the abdomen – and/or the lower portions of the backbone altogether; or
- Organs or areas, even lying far away from the gall bladder.
Prevention of Gall Bladder Cancer
Cholecystectomy, the term used for the surgical removal of the gallbladder – including dissection of the part of the liver and lymph node – is the most common and among the most effective treatments available towards gall bladder cancer cure. But, it’s the poor prognosis of gall bladder cancer that, despite every effort, patients die within a year of cholecystectomy!
In cases where surgery is not possible, endoscopic stenting of the biliary tree have been found to reduce jaundice – while a stent in the stomach being effective in relieving the patient from recurrence of vomiting.
Chemotherapy with radiation has also been found effective to go with surgery. In case gall bladder cancer is identified after an event of cholecystectomy carried out with respect to an event of stone formation/calcification (as incidental cancer), re-operation is advised in most cases with removal of the part of the liver and lymph nodes.
An early detection and intervention can offer patients the best chances of long-term survival – and even a complete cure in some instances!
Surgery brings the best chances of curing early-stage cancer and in instances where the cancer has not spread beyond the gall bladder. To determine the possibility of surgery, the oncologist may order images of the gall bladder, bile ducts and the liver. The experts will take the aid of a camera and micro instruments in the identification process – which involves insertion made through tiny incisions in the abdomen (aka laparoscopic surgery) to estimate if the tumor has spread (metastasized) to the other regions.
The surgery options include:
- Simple cholecystectomy– In instances where the tumor has remained very small and has not spread to the deeper layers of gall bladder tissue, the surgeon may advise this procedure which involves removing only the gall bladder. On some occasions, this procedure can be carried out with the aid of laparoscope.
- Extended cholecystectomyThe most commonly performed surgical methodology, extended cholecystectomy involves removal of the gallbladder – along with the liver tissue next to it, and the nearby lymph nodes.
- In instances when the cancer has spread to other organs, chemotherapy is often recommended by medical oncologists.
- While chemotherapy has not been found to cure advanced gall bladder cancer conditions, it, nevertheless, slows the progression of the disease.
A procedure involving high-energy beams can destroy cancer cells and shrink tumors. While used alone, radiation does not cure gall bladder cancer, but it may lead to an increase in the chances of survival.
It may be radiation therapy in combination with chemotherapy (chemoradiation) that specialists may recommend either before or after a surgery.
One must know that chemoradiation may be used in instances of gall bladder cancers, which even if haven’t spread throughout the body, but still cannot be removed by surgery – as well as during the cases of cancers that have been removed, but have chances of recurring with the stoppage of treatment.
Radiation options that come with a chemotherapy procedure include:
- 3-D CRT– In Three-Dimensional Conformal Radiation Therapy (3-D CRT), a computer creates a 3-D picture of the tumor and conforms/matches the radiation beam to the shape of the tumor. The process involves directed throw of radiation beams from different angles towards the tumor – sparing normal tissue as much as possible, of course.
- IMRT–Intensity Modulated Radiation Therapy (IMRT) like its counterpart in 3-D CRT, attempts to maximize the radiation dose to the area of gallbladder comprising of cancerous cells – along with the lymph node regions that are at risk – ensuring minimum intervention with the nearby healthy organs. There are cases where doctors may even recommend the use chemoradiation before surgery – followed by Intraoperative Radiation Therapy (IORT). IORT involves delivery of a concentrated beam of radiation to tumors encountered during a surgery.