Masaoka Stage IVb

The tumor shows metastasis throughout the pleural and/or pericardial spaces.

The tumor shows invasion into the neighboring tissues and organs of the lower neck or upper chest.

The tumor shows invasion through the capsule and into the surrounding fatty tissue.

The tumor shows microscopic invasion into the capsule.

The tumor is completely encapsulated.

Human MAS1 wild-type allele is located within 6q25.3-q26 and is approximately 1 kb in length. This allele, which encodes MAS proto-oncogene is…