Faces of Tip of Iceberg Sign

CT – Left Hilar Carcinoid Tumor Tip of the Iceberg Sign

CT – Left Hilar Carcinoid Tumor Tip of the Iceberg Sign
Axial CT scan at the level of the hila in a 56-year-old male shows a 4.2cms vascular mass in the distal left mainstem bronchus impinging on the lumen of the lingula airways. The mass demonstrates the tip of the iceberg sign with the larger portion of the tumor extending beneath the bronchial surface. This is a feature that is characteristic of carcinoid tumors.
Ashley Davidoff MD TheCommonVein.net 261Lu 118381c