Mesothelioma pictures

Diffuse malignant mesothelioma--epithelial type :


Diffuse malignant mesothelioma sarcomatous type :


Immunohistochemical results in malignant mesothelioma :

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Mesothelioma diagnosis

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 for 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 increases suspicion of mesothelioma. A CT (or CAT) scan or an MRI is usually performed. If a large amount of fluid is present, abnormal cells may be detected by cytology if this fluid is aspirated with a syringe. For pleural fluid this is done by a pleural tap or chest drain, in ascites with an paracentesis or ascitic drain and in a pericardial effusion with pericardiocentesis. While 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 (e.g. 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, 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 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.

From Wikipedia, the free encyclopedia

Mesothelioma symptoms

The term “Mesothelioma” in medical terms is defined as form of cancer that proliferates at a very fast rate after it has been diagnosed, which affects the mesothelial cells in the body. After detailed study of this disease by several scientists all over the world, it has been concluded that in most of the cases the reason is the direct contact with loose asbestos particles. This disease is generally known to be derived from an abnormality that arises from inhaling the loose asbestos particles suspended in the air for a very long time. The chances of the patients, diagnosed of mesothelioma, have very bleak chances of survival which is not more than one or two years and if it has been detected long back and rigorous medication has been started on the patient then the patient is likely to live for about five years.

There are three types of mesothelioma but the symptoms of the diseases depend on their kinds. The symptoms vary from one-another but the general symptoms that are found in patients suffering from different types of mesothelioma are weight loss, chest pain, loss of appetite, short breath , plain cough and cough with blood. Diagnosing mesothelioma in its initial stages is not possible because symptoms surface very late and that, these symptoms are no special signs indicating the particular disease but are common for other diseases too.

Generally the symptoms of mesothelioma resemble to that to any other normal lung diseases. Most of the symptoms arise in the lungs, where the mesothelial cells covering the lungs and the cavity between them are affected due to prolonged inhalation of asbestos fibers. Consulting with the physician is very necessary from time to time and necessary test must be conducted to detect the disease.

The main symptom of mesothelioma is a constant pain in the chest which is followed by short breaths and difficult breathing because of accumulation of fluid in the chest, which makes breathing all the more difficult. Some of the other symptoms of the disease include abnormalities in the lungs, which can be diagnosed under proper supervision of the doctor with a chest CT-scan.

Basically, the disease of mesothelioma advances in four stages. In the first stage, begins the formation of the tumor in the area of lining of the lung and doesn’t exceed from one side of the lung. And then in the second stage the tumor extends to other organs in the chest cavity, such as heart. Then in the third stage its extents to the other abdominal organs affecting all the other organs too. Finally in the fourth and the last stage the tumor extends to all parts of the body and affects all the parts adversely. These are some of the symptoms of the disease of mesothelioma, by which the disease can be tracked in the initial stages of its occurrence.

Pericardial Mesothelioma

This type of mesothelioma attacks the lining surrounding the heart and amounts to around 5% of all cases reported each year. The people who are diagnosed with this disease are typically those who worked long term with asbestos or in buildings that were thick with the material. The prognosis once the disease is discovered in the pericardium is quite grim.

You may have as few as six weeks to live and typically no more than one year. Anyone who had long term exposure to asbestos (10 years or more) should have regular pulmonary checks to rule out the possibility of pericardial mesothelioma. Even though they are similar to the symptoms of many illnesses, you want to get checked out if you have had any exposure to asbestos.
As with all other types of mesothelioma, you may be diagnosed before any symptoms show up but there are symptoms you should look out for anyway, these include:

• Heart palpitations
• Chest pains
• Shortness of breath
• Persistent cough

Pericardial mesothelioma is almost always detected at the more advanced stages. Once detected, there is very little treatment that can be offered and all that can be done is make the patient comfortable by relieving the symptoms. By this point the doctors strive to improve the quality of life left rather than make attempts at false hope of a cure for this most ravaging form of mesothelioma.

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Peritoneal Mesothelioma

This form of mesothelioma accounts for about 20% of documented cases which makes it considerably more rare than pleural mesothelioma. Peritoneal mesothelioma affects the lining that surrounds the abdominal organs, notably the GI tract. This cancer is contracted by exposure to asbestos, though the route of exposure to tumor is not well known.

There are two major theories as to how the cancer develops in the peritoneal mesothelium. Some researchers think the fibers get cause in mucous in the throat when they are inhaled and are swallowed as an entrance to the GI tract. Other researchers think the fibers may be inhaled to the lungs but travel to the lymphatic systems and transferred to the peritoneal area.

Either way, the fibers cause the cells in the area to behave abnormally and have incredibly long life spans. This causes the formation of tumors in the mesothelium which can spread throughout the peritoneal mesothelium. The cells remain dormant for multiple decades before showing any symptoms of the disease and by then the disease is in its advanced stages.

When symptoms do present themselves they include: abdominal pain and swelling (fluid retention), weight loss, appetite loss, nausea, bowel obstruction, weakness and breathing trouble depending on the size and location of the tumors.

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