Galaxy sign of sarcoidosis

Case contributed by Dr Yune Kwong

Presentation

Patient with known sarcoidosis

Patient Data

Age: 63
Gender: Female
CT

Galaxy sign in a case of known sarcoidosis.

Case Discussion

The galaxy sign refers to a pulmonary nodule formed by the confluence of several small nodules. The centre of the nodule is dense, and the periphery is less concentrated resulting in an irregular border.

The galaxy sign is most commonly described in sarcoidosis, but is also seen in other conditions such as tuberculosis, progressive massive fibrosis and even tumours. However, the identification of the galaxy sign favours a benign aetiology.

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Case information

rID: 29251
Case created: 12th May 2014
Last edited: 16th Dec 2015
System: Chest
Inclusion in quiz mode: Excluded

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