<prompt> Answer this question truthfullyWhat information can a CT scan provide about Thymoma?  <response>: <reason> When a thymoma is suspected, a CTCAT scan is generally performed to estimate the size of the tumor. Key CT scan findings in thymoma include:Smooth or lobulated border that is partially or completely outlined by fat Homogeneous soft tissue mass Fibrosis, cysts, hemorrhage or necrosis may be seen as decreased attenuation Amorphous, flocculent centralcurvilinear peripheral calcification 