Peritoneal Mesothelioma

Peritoneal Mesothelioma

A patient with peritoneal mesothelioma may not demonstrate symptoms of the cancer for 20 to 50 years after initial asbestos exposure since it often takes years for mesothelioma to manifest. In the case of peritoneal mesothelioma, asbestos fibers travel into the peritoneal layers where they cause irritation and inflammation and the development of cancerous cells which divide and grow uncontrollably. The cells cause thickening of the peritoneum and fluid build-up in the peritoneal layers. As the cancerous cells continue to divide overtime, tumors start to form. Most peritoneal mesothelioma symptoms are caused by this membrane thickening, fluid build-up, and eventual tumor development - all of which put pressure on internal organs.

Peritoneal mesothelioma symptoms include:

• Abdominal pain or swelling
• Changes in bowel habits (such as diarrhea or constipation)
• Development of lumps under the skin on the abdomen
• Night sweats or fever
• Unexplained weight loss
• Nausea or vomiting
• Fatigue
• Anemia

Peritoneal Mesothelioma Diagnosis

A peritoneal mesothelioma diagnosis cannot be made on the basis of symptoms alone. The process begins with a thorough examination of a patient’s medical history and physical condition, followed by sophisticated diagnostic testing such as imaging and fluid and tissue tests.

Imaging tests such as x-rays or CT scans are used to detect any abnormalities in the body and a biopsy is usually performed to confirm that the cancer involved is indeed mesothelioma. A biopsy is a minor surgical procedure that involves the removal of fluid or tissue from the peritoneum.

After the biopsy, the fluid and tissue is tested in a laboratory for the presence of mesothelioma cells. If the biopsy returned reveals that a patient has peritoneal mesothelioma, the doctor, together with the patient, will detail a treatment plan.

Peritoneal Mesothelioma Treatments+

Though treating peritoneal mesothelioma can be difficult since the cancer has typically progressed to later stages of development, doctors typically recommend treatment to patients to combat the cancer and aid in pain relief. Common treatments used for patients with mesothelioma include surgery, chemotherapy and radiation . Chemotherapy medications and radiation therapy target and kill cancerous cells that rapidly divide.

While no known cure for peritoneal mesothelioma exists, patients may elect to

undergo a combination of treatments or participate in clinical trials to alleviate pain an

d increase the quality of life. Clinical trials are studies that qualifying patients may participate to test up-and-coming medications and treatments. All potential treatment options and medications must go through clinical trials before they are deemed safe and effective.

Some peritoneal mesothelioma patients may opt for intraperitoneal chemotherapy, where medications are injected directly into the peritoneum immediately following surgery. In some cases, patients may first go through radiation therapy to shrink tumors before undergoing surgery.

Many patients, however, are not good candidates for surgery since mesothelioma has often spread too extensively or because the patient’s general health is too poor to cope with the stress of surgery. These patients may elect to participate in palliative treatment options that do not attempt to cure a patient, but work to relieve symptoms and improve the quality of life for peritoneal mesothelioma patients.

How Does Asbestos Cause Peritoneal Mesothelioma?

There are two main theories regarding how asbestos exposure leads to the development of peritoneal mesothelioma:

• Asbestos fibers are ingested, and these fibers work their way from digestive organs into the peritoneal membrane.
• Asbestos fibers are inhaled, and travel to the peritoneal membrane via the lymphatic system.

Regardless of how asbestos fibers actually enter the peritoneal layers, once they do enter the membrane, the body experiences difficulty in expelling them. The fibers become trapped in the peritoneal membrane, and over a period of two or more decades, cause certain changes in the mesothelial cells of the peritoneum.

The exact way in which asbestos fibers cause changes in these mesothelial cells is uncertain. One theory is that asbestos fibers cause long-term inflammation and irritation that eventually causes mesothelial cells to become cancerous. When cells become cancerous, they lose the ability to regulate their own division and growth. Cancerous mesothelial cells divide and grow without restraint, and this uncontrolled cell growth causes thickening of the peritoneum, and the build-up of fluid in the peritoneal layers. Overtime, as cancerous cells continue to divide, tumors form.

Source: www.asbestos.com

Mesothelioma Overview

Mesothelioma Overview

Mesothelioma is a rare form of cancer that primarily affects the lining of the lungs. In less common cases, the heart and abdomen can also be affected by mesothelioma cancer. Approximately 2,000 to 3,000 cases of mesothelioma are diagnosed each year in the United States, comprising around 3 percent of all cancer diagnoses. This cancer occurs about four times more frequently in men than in women and all forms of mesothelioma, except for benign mesothelioma, are terminal since no cure has been discovered.

The life expectancy for mesothelioma patients is generally reported as less than one year following diagnosis. However, a patient’s prognosis is affected by several factors, including how early the cancer is diagnosed and how aggressively it is treated.

In an effort to help patients understand mesothelioma, Asbestos.com offers a complimentary packet that contains treatment information tailored to your specific diagnosis. The packet also covers the nation's top mesothelioma doctors and cancer centers, as well as financial assistance options to help cover medical costs.

Mesothelioma Causes

Mesothelioma is primarily caused by asbestos exposure, which occurs when asbestos fibers are inhaled or ingested and become lodged in human tissue, causing inflammation or infection. Asbestos is a naturally-occurring fibrous substance that was once widely used in the 20th century in a number of different industries.

When the public became aware of the hazards associated with the mineral, warnings were issued in the mid-1970s and use of the product began to decline. More than 30 percent of those diagnosed with mesothelioma are veterans. Please visit the page on asbestos for additional information about the mineral.

Mesothelioma Types

here are five known types of mesothelioma. The four listed below are malignant cancers, and benign mesothelioma is a non-cancerous condition.

Pleural Mesothelioma

Pleural mesothelioma is the most common type of mesothelioma, a rare cancer that develops in the mesothelium (a membrane that lines many of the body’s organs and cavities). In the case of pleural mesothelioma, the cancer develops in the lining of the lungs, called the pleura or pleural membrane. Although a mesothelioma prognosis is typically poor for the majority of patients, some who are diagnosed early may qualify for a combination of aggressive therapies to improve life expectancy.

In an effort to help patients understand pleural mesothelioma, Asbestos.com offers a complimentary packet that contains treatment information tailored to your specific diagnosis. The packet also covers the nation's top mesothelioma doctors and cancer centers, as well as financial assistance options to help cover medical costs

Peritoneal Mesothelioma

Mesothelioma is a rare, aggressive cancer caused by asbestos exposure. Of the 2,000 to 3,000 cases of mesothelioma diagnosed in the United States annually, 10 to 20 percent of the patients are diagnosed with peritoneal mesothelioma. Peritoneal mesothelioma develops in the abdomen, in the mesothelial cells that form a layer called the peritoneum.In an effort to help patients understand peritoneal mesothelioma, Asbestos.com offers a complimentary packet that contains treatment information tailored to your specific diagnosis. The packet also covers the nation's top mesothelioma doctors and cancer centers, as well as financial assistance options to help cover medical costs

Source:www.asbestos.com

Mesothelioma Treatment Options

Mesothelioma Treatment Options

There are several types of treatment available for patients with mesothelioma, some recommended more frequently than others. The most commonly used mesothelioma treatment options are surgery, chemotherapy and radiation therapy. In addition, some experimental treatments are becoming more common and are showing some encouraging results in clinical trials. These treatments include photodynamic therapy, gene therapy, and immunotherapy, among others.

Mesothelioma Surgery

Surgical treatments for mesothelioma include three main types - diagnostic surgery, curative surgery, and palliative surgery. Some types of surgery fall into more than one category.
Though a cure for mesothelioma does not currently exist,
many patients elect to undergo treatment to combat the cancer. Patients may also wish to participate in clinical trials conducted to test up-and-coming treatments and medications before they are released and recommended for public use. Clinical trials are extremely important in the search for a mesothelioma cure. Knowledge gained from study results greatly help medicalprofessionals come closer to the discovery of a cure for mesothelioma.
For example, thoracentesis may be used as a diagn ostic procedure, and as a palliative treatment to provide symptomatic relief. Only curative surgery can potentially remove all cancer from a patient with mesothelioma.However, for curative surgery to be effective, it is particularly important that mesothelioma be diagnosed as early as possible. Unfortunately, mesothelioma is not usually diagnosed until it reaches Stage III or IV, when surgery is not an option.

Mesothelioma Chemotherapy

Most forms of chemotherapy involve the intravenous administra tion of drugs such as Alimta and Cisplatin. Chemotherapeutic drugs are targeted to kill cells that are rapidly dividing by interfering with processes that occur during cell division.
However, while cancer cells themselves divide rapidly, so do some types of healthy cells, causing some of the unpleasant side effects that are often associated with this form of treatment. Though older chemotherapy medications seemed to do little to fight mesothelioma, newer chemotherapy drugs are showing much promise.A relatively new form of chemotherapy called heated chemotherapy is an option for patients with peritoneal mesothelioma.This treatment is carried out following surgery, and involves the perfusion of heated chemotherapeutic medications into the peritoneum.

Mesothelioma Radiation

Radiation therapy, or "ionizing radiation", is used to kill cancer cells and to limit the spread of cancer. For patients with mesothelioma, radiation therapy is most often used in conjunction with surgery. However, in some cases radiation may be used as a stand-alone treatment to relieve pain and other symptoms associated with mesothelioma. In either case, it is rare for radiation therapy to provide more than short-term symptomatic relief.Mesothelioma patients may receive one of two types of radiation therapies, depending on whether or not they are suitable candidates for either procedure.External beam radiation therapy is the traditional type of radiation therapy, where tumors are bombarded with beams of radiation to kill cancer cells. Brachytherapy is a newer type of radiation treatment. It involves tiny radioactive rods which are implanted within a tumor to provide a strong, concentrated dose of radiation to tumors while doing very little damage to surrounding healthy tissue.

Source: www.asbestos.com

Mesothelioma Diagnosis

Mesothelioma Diagnosis

Mesothelioma patients are typically diagnosed within three to six months of their first visit to a doctor with complaints about breathing problems or chest and abdominal pain. The first step in a mesothelioma diagnosis is providing a full and accurate medical history to your doctor, including details about current and past health concerns, as well as the types of symptoms you are currently experiencing.

It is important to mention any possible exposure to asbestos. Without revealing this fact, your doctor may not consider asbestos-related diseases in his or her examination. Next, patients will undergo a physical examination where a doctor will examine all causes for any types of symptoms being displayed. In most cases, the doctor's next step will be to recommend further testing
If your doctor suspects an asbestos-related disease such as mesothelioma, the next step in receiving a mesothelioma diagnosis includes testing to confirm the presence of mesothelioma, determine the location, size and type of cancer involved, and determine whether the asbestos cancer has spread to other parts of the body. This will often involve imaging tests such as:

Chest X-ray

This is the most commonly used imaging test for the diagnosis of mesothelioma. Almost all diagnoses will involve an X-ray, but a more sophisticated imaging test will follow to further understand the shape and prevalence of the tumor(s).

CT Scan:

This is an X-ray-like procedure in which several X-ray pictures are taken and combined with a computer to produce a detailed image of body tissues. If you undergo a CT scan, you may be given an intravenous injection of dye that helps produce more detailed images.In most cases, test results for a CT scan will be available within a few days. The scan images are interpreted by a doctor who is specialized in reading the detailed images produced by CT equipment. After the results have been read, your doctor will receive a summary of the findings and will review the results with you and what they mean.


PET Scan

A glucose solution is administered through intravenous injection and a scanner is used to spot deposits of cancer cells. Malignant cells take up and use sugars more quickly than normal cells, so they can be easily distinguished using this procedure.

PET scans make use of the metabolic processes of cells to create highly detailed images of the inside of the body. Prior to a PET scan, the individual undergoing the test is injected intravenously with a solution of radioactive glucose. During the test, their body is scanned using equipment that can detect the presence of the radioactive glucose. This process works off the principle that malignant cancer cells absorb and use glucose more quickly than normal healthy cells. Once the scan images have been generated, areas of tissue that have taken up large amounts of glucose can be easily distinguished from other areas of tissue.

MRI Scan:
A combination of radio waves and a strong magnetic field is used to create detailed three-dimensional images that can be carefully examined by a radiologist.

Magnetic Resonance Imaging, originally known as Nuclear Magnetic Resonance Imaging, is a medical imaging technique that provides very detailed images of any part of the body. More sophisticated than the CT scan, the use of MRIs began in the mid 1970s and the scans are still an important diagnostic tool today, especially in the diagnosis of cancer.

By use of a powerful magnetic field, the MRI clearly shows the contrast of different soft tissues in the body. By changing exam parameters, the MRI can cause these tissues to take on different appearances. When this occurs, the radiologist who is observing the MRI can simply tell whether something inside the body is abnormal by the way it appears on the screen.

Unlike other diagnostic procedures, the MRI does not rely on radiation, making it an even safer procedure than most. Instead, when the body is inside the machine, radio waves redirect the axes of spinning protons, which are the nuclei of hydrogen atoms, in a strong magnetic field. This field is produced by allowing an electrical current to pass through wire coils inside the machine. Other coils that encircle the body send and receive radio waves, producing signals that are received by a computer. The signals generate images that each show a thin "slice" of the body. These images are then interpreted by a radiologist experienced in reading MRI results.

source: www.asbestos.com