<prompt> Answer this question truthfullyWhat is the process of staging for thymic carcinoma?  <response>: <reason> Stage I - Macroscopically and microscopically completely encapsulated Stage II - Macroscopic invasion into surrounding the adipose tissue or mediastinal pleura or microscopic invasion into the capsule Stage III - Macroscopic invasion into adjacent organs or intrathoracic metastases Stage IVA - Pleural or pericardial implantsdissemination Stage IVB - Nodal or hematogenous metastases 