This tag is associated with 3 posts

The Golden S Sign – Right Upper Lobe Collapse

History: middle aged female with cough.  This is a nice example of right upper lobe collapse and the classic Golden S sign, which is the elevated minor fissure convex inferiorly on the proximal/medial portion and concave inferiorly on the distal or lateral portion. This sign is classically seen with post-obstructive atelectasis due to a central … Continue reading


History: 60 year old male with fever, cough, and shortness of breath.  This is complete collapse of the lateral basal segment of the left lower lobe, which can also be describe as partial atelectasis of the left lower lobe. Lobar collapse occurs when an entire lobe of the lung is not aerated. Obscuration of the … Continue reading

Round Atelectasis

History: 60 year old male undergoing CT of the thorax for follow up of chest x-ray abnormality.  This is a classic appearance of round atelectasis. Look again at the image above. Notice the calcified pleural plaque along the area of atelectasis. Round atelectasis is most frequently seen in asbestos related pleural plaques. Other terms for … Continue reading