A member asked:

Do atelectasis & pneumonia look similar on non contrast chest ct scan?

3 doctors weighed in across 2 answers
Dr. Michael Gabor answered

Specializes in Diagnostic Radiology

May be some overlap in the CT appearance of pneumonia and atelectasis, other times there are signs that help tell the difference. Keep in mind that elements of both could be present simultaneously.

Answered Dec 7, 2017



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Dr. Gerald Mandell answered

Specializes in Nuclear Medicine

On non contrast CT scan it is difficult to differentiate in some cases atelectasis from pneumonia. With contrast administration usually atelectasis is more contrasted (enhanced) than most pneumonias.

Answered Dec 7, 2017



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