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October 2015 Pulmonary Case of the Month: I've Heard of Katy Perry

Kathryn E. Williams, MB

Maxwell L. Smith, MD

Philip J. Lyng, MD

Laszlo T. Vaszar, MD


Department of Pulmonary Medicine

Mayo Clinic Arizona

Scottsdale, AZ


History of Present Illness

A 45-year-old man with a history of dyslipidemia and a family history of early coronary artery disease (CAD) underwent coronary artery calcium scoring CT. He was a non-smoker and asymptomatic.

Past Medical History

In addition to his hyperlipidemia he has a history of obesity and impaired fasting glucose.

Physical Examination

His physical examination was unremarkable.


The thoracic CT was interpreted as a low risk for CAD but there were incidental findings (Figure 1).

Figure 1. Panels A-C: Representative views from the thoracic CT scan in lung windows. Lower panel: video of thoracic CT in lung windows.

What incidental finding is not shown on thoracic CT scan. (Click on the correct answer to proceed to the second of six panels).

  1. Honeycombing
  2. Multiple small pulmonary nodules
  3. Patchy ground glass opacities
  4. Slightly enlarged mediastinal lymph nodes

Cite as: Williams KE, Smith ML, Lyng PJ, Vaszar LT. October 2015 pulmonary case of the month: I've heard of Katy Perry. Southwest J Pulm Crit Care. 2015;11(4):126-35. doi: PDF

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