The Butchart System is the oldest staging system for malignant mesothelioma and is the one most commonly used by doctors and specialists to diagnose and treat malignant mesothelioma. The Butchart System is based on the tumor size (mass) and divides malignant mesothelioma into four stages:
* Stage 1 - Malignant mesothelioma has affected the right or left side of the chest cavity (pleural lining) and may be seen in the diaphragm.
* Stage 2 - Malignant mesothelioma has been found in the pleura on both sides of the body and may have also moved into the heart, stomach, or esophagus on both sides. Lymph nodes may be affected.
* Stage 3 - Malignant mesothelioma has reached the abdominal cavity (peritoneum). Lymph nodes past the chest may be affected.
* Stage 4 - Malignant mesothelioma has reached other organs and has entered the blood stream.
Sunday, May 24, 2009
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