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How Is Mesothelioma Diagnosed?

by Ivan Chia

Diagnosing mesothelioma is often difficult, because the symptoms are similar to those of a number of other conditions. Diagnosis begins with a review of the patient’s medical history, including any history of asbestos exposure. A complete physical examination may be performed, including x-rays of the chest or abdomen and lung function tests. A CT (or CAT) scan or an MRI may also be useful. A CT scan is a series of detailed pictures of areas inside the body created by a computer linked to an x-ray machine. In an MRI, a powerful magnet linked to a computer is used to make detailed pictures of areas inside the body. These pictures are viewed on a monitor and can also be printed.

A biopsy is needed to confirm a diagnosis of mesothelioma. In a biopsy, a surgeon or a medical oncologist (a doctor who specializes in diagnosing and treating cancer) removes a sample of tissue for examination under a microscope by a pathologist. A biopsy may be done in different ways, depending on where the abnormal area is located. If the cancer is in the chest, the doctor may perform a thoracoscopy. In this procedure, the doctor makes a small cut through the chest wall and puts a thin, lighted tube called a thoracoscope into the chest between two ribs. Thoracoscopy allows the doctor to look inside the chest and obtain tissue samples. If the cancer is in the abdomen, the doctor may perform a peritoneoscopy. To obtain tissue for examination, the doctor makes a small opening in the abdomen and inserts a special instrument called a peritoneoscope into the abdominal cavity. If these procedures do not yield enough tissue, more extensive diagnostic surgery may be necessary.

If the diagnosis is mesothelioma, the doctor will want to learn the stage (or extent) of the disease. Staging involves more tests in a careful attempt to find out whether the cancer has spread and, if so, to which parts of the body. Knowing the stage of the disease helps the doctor plan treatment.

Mesothelioma is described as localized if the cancer is found only on the membrane surface where it originated. It is classified as advanced if it has spread beyond the original membrane surface to other parts of the body, such as the lymph nodes, lungs, chest wall, or abdominal organs.

About the Author
Ivan Chia is an active online content writer. If you would like to learn more about mesothelioma, please visit: Mesothelioma Resource.

Malignant Mesothelioma diagnosis

If a patient symptoms suggest a malignant mesothelioma, the doctor begins with the imaging techniques for a diagnosis. The X-ray and computed tomography of the chest or abdomen are taken to detect any disturbance, such as fluid collections, thickening of the tissue, or raw, the show, a disease is based. Magnetic Resonance Imaging (MRI) and positron emission tomography (PET), the images are to the extent of the spread of cancer, the PET is more expensive, but also the faithful. From the analysis of data for planning the treatment.

As soon as the suspected cancer is a biopsy of the tissue is necessary in order to confirm the diagnosis. If the pleura or fabric wallpapered, lungs and the chest is not in question, a thoracoscopie, as a rule under local anaesthetic. A small opening in the wall is a thoracic and called a thorascope in which the surgeon can in the chest between the ribs. Tissues and fluids can be collected through this opening. Although the peritoneum or tissues boggle the abdomen and the abdominal organs involved, a peritoneoscope into the abdominal cavity to collect biopsy tissue. The biopsy tissue is then examined under the microscope to determine if the cells or cancer cells are normal. Depending on the cell type, the diagnosis of malignant mesothelioma. Mesotheliomas are smarter than three cell types: epithelioid, mixed and sarcomatoid. In general epithelioid Malignant mesothelioma is the most common and best with the forecast; sarcomatoid are the rarest in time to survive shorter.

The next step is to localize production as cancer, advanced or recurrent. This can be done through a combination of images and exploration operation. There are three systems of production in use, each with four steps: Butchart system, and Brigham TNM system.