Patient Data
Age: Adult
Gender: Male
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Frontal chest x-ray demonstrates a large soft tissue density on the right side. It obliterates the normal silhouette of the SVC and right heart border. Hilar vessels can be seen through the mass. The rest of the lungs and the pleura appear unremarkable.
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Lateral chest x-ray confirms the mass to be arising anteriorly.
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The ability to visualize pulmonary vessels through the mass implies that it is located either anterior or posterior to the hilum, but not at the hilum. This is known as the hilum overlay sign.
Case Discussion
This x-ray elegantly demonstrates the features of an anterior mediastinal mass.