Michael B. Gotway, MD
Associate Editor, Imaging
Clinical History: A 71-year-old man with a 20-pack-year history of smoking presented with complaints of cough. A chest radiograph (Figure 1) was performed.
Figure 1: Frontal and lateral chest radiography shows a medially located mass projected over the thoracic aorta on the frontal projection (A), residing posteriorly over the thoracic spine on the lateral projection (B). The lesion does not show visible calcification, and is non-specific in appearance.
Which of the differential diagnostic considerations listed below is the least likely consideration for the appearance of the lesion on the chest radiograph?
- Primary pulmonary malignancy
- A mass arising from the pleura
- Pulmonary lymphoma
- Arteriovenous malformation
- Hamartoma
Reference as: Gotway MB. May 2012 imaging case of the month. Southwest J Pulm Crit Care 2012:4:155-62. (Click here for a PDF version of the case)