Mesothelioma Diagnosis
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Mesothelioma is a deadly cancer that attacks the thin tissue that lines the lungs. Mesothelioma prognosis for a person who has been diagnosed with mesothelioma is not good, not so long ago, people with mesothelioma have been generally said they could expect to live eight to 18 months after diagnosis. However, with the diagnosis of mesothelioma and new medical treatments, the lives of mesothelioma patients many have been considerably extended.
It’s about 3,000 new cases of mesothelioma is increasing in the United States of America. Mesothelioma is a rare form of cancer and it is a sequela of exposure to asbestos. Cancer cells tend to destroy the mesothelium, a protective bag containing the body’s internal organs. Initially, pleura or peritoneum are affected, then it spreads to other body parts. It is a fatal disease and the survival time of the victim is almost one year from the time of diagnosis according to the treatment and other factors.
Prognosis of mesothelioma depends solely on the merit of diagnosis and treatment. If treatment is provided after a long delay while the survival of the victim grows thinner. Again, survival depends heavily on factors such as treatment, the type of mesothelioma, as well as patients’ health and morale. The stage of disease at diagnosis is the most important factor that determines the prognosis of survival and hope at least the victim. Unfortunately, unlike other cancer mesothelioma is a bit difficult to stage. This is because the symptoms of mesothelioma are non-specific due to which the cells have already matured at the time of diagnosis.
Early detection of disease is essential to the prosecution of any type of treatment. The location and size of the tumor, the response of cancer treatment, since the cancer has spread, what impression does not give the cells under the microscope and the age of the patients are some of the contributing factors that determine Mesothelioma Prognosis.
It should be emphasized that the diagnosis of the disease is not child’s play. Later it becomes all the more difficult because of the misleading nature of the subtle symptoms of mesothelioma. For example, if you cough and you might never know that you contracted the disease unless and until your doctor says while providing a prognosis of mesothelioma.
Written by admin on January 12th, 2012 with no comments.
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The diagnosis of mesothelioma can be such a delicate process. Because the symptoms are similar to those of many other common diseases, this aggressive form of cancer can often be mistaken for something else. Sometimes the doctor diagnose mesothelioma usually occurs within six months after a patient’s first visit to her doctor with complaints about a number of diseases, which often include chest pain, shortness of breath and coughing.
An accurate diagnosis depends largely on the patient provides a complete history of both medical and professional. This may indicate an exposure to asbestos may have caused the disease. The first step is to provide an accurate and complete history of all medical problems, including health issues, current problems of the past, and a detailed description of your current symptoms.
Your doctor may do imaging tests such as chest x-rays and a CT scan of your chest or abdomen, to search for anomalies. Based on the results, you can undergo further tests to determine if the disease mesothelioma or another is the cause of your signs and symptoms.
Chest X-ray
Chest radiography is usually the first imaging test your doctor. However, chest radiography is of limited usefulness because the results of mesothelioma in the chest x-ray are nonspecific and observed in other diseases as well.
CT
CT Scan is similar to an X-ray, but produces multiple images that are then assimilated by a computer so you can see the fabric in more detail. Patients receiving CT scans of the chest and abdomen are sometimes injected with a dye that will create more contrast, which provides more details.
Magnetic resonance imaging
MRI will create very detailed images in three dimensions that allow a radiologist trained to identify suspicious areas. MRI allows a better delineation of soft tissue (better contrast of soft tissues) and can provide additional information from other studies.
Positron emission tomography
Emission tomography is a procedure in which a radioactive substance is used to measure the metabolic activity of cells. Cancer cells show increased metabolic activity. This procedure is increasingly used to determine the size of the tumor and whether the tumor has spread.
Biopsy
Besides the implementation of the imaging test, your doctor may want to perform a biopsy of the suspicious area. The biopsy is a procedure to remove a small portion of tissue for laboratory examination, is the only way to determine if you have mesothelioma. There are four main types of biopsies your doctor may choose to order.
Fine needle aspiration
Mesothelioma usually leads to an accumulation of fluid in the affected area, as the mesothelium, or lining in the chest cavity. To perform a fine needle aspiration, the doctor uses a thin, long needle to extract a fluid sample.
Thoracoscopy
Thoracoscopy allows the surgeon to see inside your chest. In this procedure, the surgeon makes one or more small incisions between the ribs to get a tissue sample.
Laparoscopy and bronchoscopy
Both procedures are performed on different areas of the body. Bronchoscopy may be ordered to check the airways and trachea. Laparotomy is surgery to open the abdomen to allow the surgeon to check for signs of disease. A tissue sample can be removed for testing.
Mediastinoscopy
Mediastinoscopy is used to examine the lymph nodes in the neck and chest to see if the cancer has spread from its original site.
Written by admin on January 6th, 2012 with no comments.
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Symptoms and diagnosis of mesothelioma
Symptoms
Early symptoms of mesothelioma are non-specific and may delay diagnosis. In general, shortness of breath, chest pain and cough are common symptoms of pleural mesothelioma, but in some cases, they can not be sufficiently serious as to push the patient to a medical consultation. Some patients complain of pain in the shoulder blade and lower back. These symptoms mostly occur 2-3 months before a confirmed diagnosis. In peritoneal mesothelioma, abdominal pain and swelling, nausea or vomiting, bowel obstruction and weight loss are the most common symptoms. Importantly, these symptoms are not specific for mesothelioma and may be symptoms of other conditions. The assessment by a qualified physician is always recommended.
As mesothelioma progresses, pleural effusion (accumulation of fluid between the two pleural layers) occurs in 95% of patients, and it is this symptom which finally leads patients to consult their doctor. During the visit, a chest X-rays can confirm the effusion. Thickening of the pleura may also be noted at this time. If the doctor suspects cancer, he may send his patient to a hospital consultant who specializes in lung cancer and mesothelioma.
When your doctor recommends you contact the following information should be given to you:
- Where you are sent.
- When the appointment will be made.
- That you view.
- What test can you expect.
- When the test results will be available.
- The National Institute for Health and Clinical Excellence (National Institute for Health and Clinical Excellence) has developed the following general guidelines to address a patient suspected of cancer, in force since June 2005. These guidelines may not apply to all individuals, and you should always discuss the details of your specific case with your health care team, so you can play a proactive function in your treatment and care.
An assessment of the emergency will be made by your doctor and will be based on the following criteria:
- A contact immediately: The patient requires a consultation in a few hours.
- A contact urgently: The patient will be seen within 15 days.
- Non-urgent: all other addresses.
- Determined once the emergency, your doctor will send all information relating to you in your specialist for evaluation.
Diagnosis
A diagnosis of mesothelioma is often obtained from a careful evaluation of clinical and radiological findings, in addition to a tissue biopsy confirmation. Some of the tests your specialist may recommend and their diagnostic value and evaluation of mesothelioma are presented below.
Computed tomography (CT)
CT scans are able to reveal a pleural effusion, and pleural thickening, pleural calcification, thickening of interlobular fissures, or possible chest wall invasion. However, CT can not distinguish between changes associated with benign asbestos disease, or between adenocarcinoma of the lung and mesothelioma. CT scans may also be of value to guide fine needle aspiration of pleural masses for tissue diagnosis. The scan takes 10-30 minutes usually, but may vary depending on the patient.
Magnetic resonance imaging (MRI)
MRI scanners are often used to determine the extent of a tumor prior to aggressive treatment. They provide images in multiple planes and then peuvnt better identify tumors compared to normal structures. They are also more accurate than CT in estimating the enlargement of mediastinal lymph nodes located between the two lungs, as well as a clear diaphragmatic surface area, both having an important function for the surgical option. The MRI scan usually takes 20-40 minutes but can vary depending on the patient.
Positron emission tomography (PET)
PET imaging is currently occupying a large part of the diagnosis and evaluation of mesothelioma. PET scans are considered the best diagnostic of tumor sites, and the best to determine the stage of mesothelioma. PET scans are relatively new and therefore may not be available in all schools, it may be necessary to travel to find a specialized center that has one.
The analysis of fluid
Analyze pleural fluid to find malignant cells has only limited diagnostic value for mesothelioma. Diagnostic thoracentesis, in which cells are extracted from the pleural cavity is commonly done when there is a suspicion of mesothelioma. Unfortunately, the results are negative or inconclusive in almost 85% of tests. Even in the case of a positive result of fluid, doctors may opt for a biopsy to confirm the time that it is not at the expense of patient health.
Analysis of tissue (biopsy)
In most cases, finally takes a needle biopsy of pleura, or surgical biopsy confirms the diagnosis of mesothelioma. In a pleural biopsy procedure, the surgeon makes a small incision in the chest wall and inserted into the chest between two ribs a thin lighted tube called thorascope. It will remove a tissue sample which is then examined under a microscope by a pathologist. When peritoneal biopsy, the surgeon makes a small incision in the abdomen and inserts a peritoneoscope into the abdominal cavity.
Written by admin on January 4th, 2012 with no comments.
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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. A history of exposure to asbestos may increase clinical suspicion of mesothelioma. A physical examination is performed, followed by chest X-ray and often lung function tests. The x-ray may reveal pleural thickening commonly seen after asbestos exposure and suspicion of mesothelioma increases. A CT scan (or cat) or MRI is usually performed. If a large amount of fluid is present, abnormal cells can be detected by cytopathology if this fluid is aspirated with a syringe. For pleural fluid this is done by a pleural tap or chest drain, ascites with an paracentesis or ascitic drain and in a pericardial effusion with pericardiocentesis. While the absence of malignant cells on cytology does not completely exclude mesothelioma, it makes it much more unlikely, especially if an alternative diagnosis can be made (eg., Tuberculosis, heart failure).
If cytology is positive or a plaque is regarded as suspicious, a biopsy is needed to confirm a diagnosis of mesothelioma. A doctor 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 tube and light, 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 laparoscopy. To obtain tissue for examination, the doctor makes a small incision in the abdomen and inserts a special instrument into the abdominal cavity. If these procedures do not yield enough tissue, more extensive diagnostic surgery may be necessary.
Written by admin on January 4th, 2012 with no comments.
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