Wednesday, January 16, 2013

The Deep Sulcus Sign

The deep sulcus sign refers to lucency of the lateral costophrenic angle in a supine patient with a pneumothorax. The above images demonstrate the deep sulcus sign at the left costophrenic angle in a pediatric patient. A left lateral decubitus film (second image) confirmed the presence of a pneumothorax.

Kong A. The deep sulcus sign. Radiology 2003;28:415-6.

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