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Pancreatic Cancer
What is the pancreas?
Tell me about cancer of the head of the pancreas.
What symptoms do patients have for this kind of cancer?
How does the doctor know I have this?
How is this treated? Will I need surgery?
Will the surgery cure me? What will my life be like
after the surgery?
Tell me about cancer of other parts of the pancreas.
What is the pancreas?
The pancreas is a long flat organ found over the spine behind the other abdominal
organs. Its function is to produce enzymes to digest food, and insulin to control
the body’s use of sugar. The head of the pancreas is on the right and the
tail is on the left. Symptoms of pancreatic cancer will depend on where the cancer
is located. Cancer of the head of the pancreas causes jaundice and cancer of the
tail of the pancreas produces pain.
Tell me about cancer of the head of the pancreas.
There are four cancers that can occur near the ampulla of the duodenum, which
is just past the stomach. The ampulla is a small muscle that surrounds the end
of the bile and pancreatic ducts. Cancers can form in the ampulla itself, in the
duodenum, in the bile duct, or in the head of the pancreas. These cancers are
referred to as “periampullary” cancers because of their location.
They are all listed together because the symptoms, diagnostic testing, and treatments
of these cancers are similar.
Pancreatic head cancer is the most frequent cancer of the periampullary area
and is the 4th leading cause of cancer deaths in man in the U.S. Almost 30,000
people die from pancreatic cancer yearly. About 80% of the patients with periampullary
cancer are over 60 years of age. The most frequent type of malignancy of this
area is called adenocarcinoma. There are other, more rare, types of malignancy,
such as that from the endocrine cells of the pancreas, or from cystic tumors,
such as mucinous cyst adenocarcinoma. There are also even more rare types of malignancy
such as sarcomas and lymphomas. Metastasis (spread of cancer to the pancreas from
another area of cancer in the body) to the periampullary area also frequently
occurs from other organs such as lung, stomach, breast etc.
What symptoms do patients have for this
kind of cancer?
Smoking doubles the risk of this cancer. Thirty percent of patients who develop
pancreatic cancer develop diabetes the year prior to diagnosis. Patients with
cancer of the periampullary area usually have jaundice. Their urine becomes dark
and friends inform them that the skin and eyes look yellow. Pain is not a major
symptom, but they may have abdominal discomfort and loss of appetite. Cancers
of the duodenum or the ampulla may cause vomiting, bleeding, anemia, and black
or silvery stools. On examination there are rarely any physical findings except
for jaundice and a large gallbladder felt underneath the right rib cage as it
becomes distended due to obstruction.
How does the doctor know I have this?
Your surgeon will be interested in detailed studies to tell him as much as possible
about your disease so that he can recommend the best treatment for you. You may
be told that you need any of the following tests. Blood chemistries will demonstrate
that the bilirubin and alkaline phosphatase are elevated. A CT scan is ordinarily
performed, which will demonstrate a mass in the pancreas with large pancreatic
and common ducts. CA 19-9 is a tumor marker, which is produced by pancreatic cancer
and may often be elevated. This can be used as a tool to determine the activity
of the tumor and the response to therapy. This test is also useful after curative
surgery, as the CA 19-9 will go down to normal and will become elevated if the
tumor recurs. Many, many other tests can be offered to the patient who has periampullary
cancer. If a cancer of the ampulla or duodenum is suspected, gastroscopy will
demonstrate the tumor. An ERCP is performed almost routinely, but it is not indicated
most of the time unless there is a question of pancreatitis. Similarly, routine
use of needle biopsy of the pancreas is not advisable. It should be used to prove
metastasis, in which case surgery is not curative and therefore not indicated.
How is this treated? Will I need surgery?
You will need surgery for cancer of the head of the pancreas if the tumor has
not spread. The surgical treatment for cancer of the head of the pancreas and
the other periampullary cancers is a Whipple operation. In this operation the
bile duct is transected (cut), and the pancreas is transected at the junction
of the body and tail. The stomach is transected from the duodenum (called pyloric
saving) or part of the stomach is removed and the small bowel is transected just
past the duodenum. Then the small intestine is connected to all the transected
organs. This is a very complicated operation, which should be performed by someone
who performs many of these. The complications of the surgery are many and can
range from bleeding to infection, to obstruction, pneumonia or blood clots. This
is why it is important that the surgeon you choose has done many of these procedures,
and you should always ask this question of your surgeon.
At times you may need surgery even though cure is not probable to help you
with problems of vomiting or jaundice which cannot be relieved with a non-operative
means.
Will the surgery cure me? What will my
life be like after the surgery?
In the hands of an experienced surgeon the death rate from the surgery is less
than 2 - 5% with a five-year survival rate (or cure) of 20%. Statistics are very
difficult to interpret because various surgeons report their findings using different
methods. The cure rate for the other periampullary cancers is much better and
approaches 50-60%
The quality of life after surgery is very acceptable. A few patients who were
pre-diabetic may need small amounts of insulin and occasionally others may require
pancreatic enzymes.
Follow up after surgery is important and a medical oncologist is often consulted
for chemotherapy. If it is demonstrated that the patient has disease that has
metastasized (spread to other parts of the body), then chemotherapy and radiation
are both used. Jaundice is alleviated with a stent, which is an artificial bridge
that is placed through the liver and the bile duct into the duodenum. This takes
care of the jaundice without surgery.
Tell me about cancer of other parts of the
pancreas.
Cancer of the body and tail of the pancreas, in comparison to periampullary cancer,
presents most often with pain, weight loss and loss of appetite. These cancers
are usually not cured with surgery. If the CT scan demonstrates that the lesion
is resectable (can be taken out with hope for cure), the surgeon will resect (cut
out) the body and tail of the pancreas and also remove the spleen. This surgery
is somewhat less difficult than the Whipple operation, but more patients become
diabetic. Because the spleen is removed, the patient will need protection against
certain bacteria. They receive vaccines against pneumococcus, meningococcus and
hemophilus. The medical oncologist plays a very crucial role in the care of these
patients.
University Surgeons is nationally recognized for its excellence in the diagnosis,
treatment, and surgery of cancer of the pancreas. The doctors listed below meet
the criteria of having done many operations for cancer of the pancreas:
John L. Butsch, M.D.
Daniel J. Deziel, M.D.
Alexander Doolas, M.D.
Keith W. Millikan, M.D.
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