Conclusion
The mediastinal tumour is a rare abnormal growth in the mediastinum. The position of the mass determines the effects of this growth and if it is a primary or secondary mass. It would help to speak with your health care provider when you observe any symptoms. The condition can be treated if it is reported early.
References;
[1] https://www.cancer.gov/publications/dictionaries/cancer-terms/def/spinal-column
[2] https://www.mayoclinic.org/diseases-conditions/lymphoma/symptoms-causes/syc-20352638
[3] https://www.sciencedirect.com/topics/medicine-and-dentistry/thymus-cyst
[4] https://www.ncbi.nlm.nih.gov/books/NBK562287/
[5] https://www.medicalnewstoday.com/articles/220349
[6] https://medlineplus.gov/ency/article/000067.htm