A 63 year old woman came with complaints of difficulty in swallowing (liquids > solids) for six months
A well defined soft tissue nodule about 2.5 cm. in diameter is seen in the right parahilar region- in the medial aspect of the right middle lobe. It has smooth margins and few calcific foci and a few hypodense areas. It enhances homogeneously. There is a right aortic arch.