Anterior medistinal mass

Clinical presentation:

45 year old female presented with chest pain.

Findings:

Frontal chest radiography demonstrate subtle opacity with sharp border projected over the APW.

On the lateral radiography it is easy to appreciate the obliteration of the retrosternal space. 

CT scan of the chest with contrast confirmed the anterior medistinal lesion. 

The lesion demonstrate moderate metabolic activity on PET/CT, with SUV of 4.4 

The lesion was biopsied through CT guidance , and path proven thymoma.