What are the characteristic symptoms of thymus cancer?

There are benign: Masses called thymoma, can cause muscle weakness (myesthenic syndrome), pure red cell aplasia (spindle type), and associated with rheumatic diseases (lupus, polymyositis). There is a malignant variety, and carcinoids affecting the organ. The thymus helps develop the t-cell immunity; involutes in adulthood.

There are benign: Masses called thymoma, can cause muscle weakness (myesthenic syndrome), pure red cell aplasia (spindle type), and associated with rheumatic diseases (lupus, polymyositis). There is a malignant variety, and carcinoids affecting the organ. The thymus helps develop the t-cell immunity; involutes in adulthood.

This may help: Space limited. These links may help you: http://www.Cancer.Net/cancer-types/thymoma/symptoms-and-signs and http://www.Cancer.Net/cancer-types/thymoma/staging.