CONCLUSION
This case illustrates the importance of recognizing the potentially
indolent course that thymoma, specifically subtype B2, can exhibit. The
patient’s unique presentation and gradual progression of symptoms
allowed for a meticulous and well-considered approach to her treatment,
ultimately leading to the decision of surgical intervention. Recurrence
rate for thymoma is high, implying a necessity for a tailored treatment
approach and postoperative surveillance strategy. In addition, our case
highlighted the effectiveness of fluoroscopy guided pericardiocentesis
as a safe and effective procedure for both symptom relief and
cytological examination in patients with thymoma.