Thymoma that has not changed much on chest CT for two consecutive years still needs treatment, because on one hand, it may be enlarged, and on the other hand, it may subsequently compress other organs and tissues.
Two consecutive years of chest CT with little change in the thymoma does not mean that there is no change at all. Generally speaking, thymoma will continue to increase in size over time, and the probability of no change at all is relatively small, so the statement of little change is not rigorous.
On the other hand, with the continuous growth of thymoma, it can compress the surrounding organs and tissues, such as trachea, esophagus, etc., resulting in respiratory difficulties, dyspepsia, etc., which seriously affects the normal life as well as health, so the necessity of timely resection is greater.
To summarize, thymoma needs to be removed in time, and it is recommended to seek medical advice.