CTICasesGolden's S Sign of Right Upper Lobe Collapse (Metastatic Uterine Sarcoma)
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Imaging findings
Chest radiographs and CT scans demonstrate a mass in the right paratracheal region causing right upper lobe collapse, displaying the classic 'S sign of Golden' where the minor fissure forms a concave curve laterally and a convex curve medially around the obstructive mass. Coronal CT reconstructions beautifully delineate the collapsed, wedge-shaped right upper lobe and the obstructing metastatic soft-tissue mass.
Key takeaways
The 'S sign of Golden' is a classic radiographic sign of lobar collapse (most commonly the right upper lobe) caused by an central obstructing mass. The S-curve is created by the upward medial displacement of the minor fissure (concave portion) and the bulge of the central mass (convex portion), and while historically associated with primary lung bronchogenic carcinoma, it can also be seen with central endobronchial metastases such as uterine sarcoma.
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