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Mesothelioma is a type of cancer that typically occurs due to exposure to asbestos. A mesothelioma prognosis depends on the stage of the disease and the age of the patient at the time of diagnosis. Other factors affecting prognosis include the general health of the patient and the microscopic make-up of the specific mesothelioma that is affecting the patient.

This type of cancer lies latent within the body during its developmental stages and is usually only discovered decades after the initial exposure, so pinpointing a source of exposure can be difficult. Often the patient has other health issues that hamper the diagnosis of mesothelioma. The symptoms of mesothelioma closely resemble other more common diseases, making a diagnosis challenging. As a result, most mesothelioma is diagnosed in later stages of the disease.
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