Frontal chest radiograph demonstrates a left paratracheal radio-opacity with sharp lateral margin and indistinct medial border that silhouette the left cardiac border, suggestive of anterior mediastinal mass. Shift of the mediastinum to the right side is also seen. Specks of calcification within the mass is noted. Findings are most likely suggestive of
Selected axial and sagital chest CT confirm the presence of anterior hypodense well defined left-sided mediastinal mass, with calsification and fat within it, the appearance is highly suggestive of teratoma.