October 2015 Imaging Case of the Month

Philip W. Ho, MD

Stacey Black, MD

Clinton Jokerst, MD

Department of Medical Imaging

Banner University Medical Center

Tucson, AZ

Clinical History: A 68-year old Hispanic man presented to the emergency department with dry cough for two days and was found to be hypoxic, with O₂ saturation in the high 80’s. The patient’s clinical history is significant for remote 3 year smoking history and former occupation as a miner. Frontal and lateral chest radiography (Figure 1) was obtained.

Figure 1. Frontal (panel A) and lateral (panel B) chest radiograph.

Based on the appearance of the chest radiograph, which of the following is the least likely diagnosis? (Click on the correct answer to proceed to the second of five panels)

1. Osteophyte
2. Peripheral nerve sheath tumor
3. Pneumonia
4. Pulmonary arteriovenous malformation (AVM)

Cite as: Ho PW, Black S, Jokerst C. October 2015 imaging case of the month. Southwest J Pulm Crit Care. 2015;11(4)144-50. doi: http://dx.doi.org/10.13175/swjpcc117-15 PDF