Quiz: Differentiating Between Chronic HP, NSIP, and UIP

Question 1:

Inspiratory (TLC)

Axial Inspiratory (TLC) on HRCT

Expiratory (RV)

Axial Expiratory (RV) on HRCT

Inspiratory (TLC)

Coronal Inspiratory (TLC) on HRCT

Expiratory (RV)

Coronal Expiratory (RV) on HRCT

RV, residual volume; TLC, total lung capacity.
Images courtesy of and used with permission from Jonathan Goldin, MD, PhD.

Which of the following features are present in the above axial and coronal HRCT scans?

Correct! All of these features are present in the above CT scans. Note the importance of obtaining expiratory scans to evaluate the presence of air trapping.

Incorrect! All of these features are present in the above CT scans. Note the importance of obtaining expiratory scans to evaluate the presence of air trapping.