Right-sided mastectomy and asymmetrical axillary folds.
Mixed attenuation round lesion mainly of soft tissue density is seen involving the right lower zone. Considering the patient's history of breast cancer, further characterization of the lesion using chest CT is advised.
Bilateral costophrenic angle blunting, more pronounced on the right side.
Calcified aortic knuckle with unfolding of the aorta.