Preferred Label : iceberg sign;
RADLEX synonyms : thoracoabdominal sign; tip-of-the-iceberg sign;
Definition : Sharp opacity extends through the diaphgram and resembles the tip of an iceberg as
it diverges away from the spine on a chest or abdominal radiograph. Suggests lesion
resides on both thorax and abdomen, such as a thoracoabdominal aneurysm, esophagogastric
lesion, azyogs continuation of the inferior vena cava, or paraverterbral tuberculosis
abcess.;
Source : Eisenberg, Ronald L. Atlas of Signs in Radiology.;
Origin ID : RID35296;
Associated condition(s)
Sharp opacity extends through the diaphgram and resembles the tip of an iceberg as
it diverges away from the spine on a chest or abdominal radiograph. Suggests lesion
resides on both thorax and abdomen, such as a thoracoabdominal aneurysm, esophagogastric
lesion, azyogs continuation of the inferior vena cava, or paraverterbral tuberculosis
abcess.
