Ist possibility lung cancer
2nd possibility hydatid cyst
well defined lung mass only two DD… Growth or Cyst… If its mediastial then lots of DD
Well defined round soft tissue density mass in left mid to lower zone with broad base towards mediastinum and incomplete border medially with hilar vessels seen though the mass and paravertebral line seen clearly likley anterior mediastinal mass. Possiblities lymphoma, teratoma
Left sided posterior mediastinal density. For further ct chest assessment
But i think may be neuroenteric cyst as no complaint !
Anterior mediastinal
Likely benign
Pericardial cyst possible
Large well defined mass left hilum area for ct scan.? Bronchogenic carcinoma ? Hydatid cyst