NCIt definition : A malignant mesothelioma with the gross appearance of a circumscribed serosal lesion
and the microscopic appearance of diffuse malignant mesothelioma, without evidence
of diffuse spread.;
Alternative definition : NCI-GLOSS: Cancer is found in the lining of the chest wall and may also be found in
the lining of the lung, the lining of the diaphragm (the thin muscle below the lungs
and heart that separates the chest from the abdomen), or the lining of the sac that
covers the heart on the same side of the chest.;