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Galaxy Sign: A Sign Among Others of Pulmonary Sarcoidosis
Hind Sahli, Sanae Amalik, Hamza Retal, Hounayda Jerguigue, Rachida Latib, Youssef Omor
Galaxy sign is a metaphor of medical imaging corresponding to to an irregularly marginated pulmonary nodule formed by the confluence of several small nodules that are less concentrated in the periphery. It was first described in sarcoidosis, but it can also be seen in tuberculosis, silicosis, progressive massive fibrosis without forgetting malignant causes.
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