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Radiology.Academy.Sk

Chest signs

Air Bronchogram Sign

Visible bronchi within parenchymal consolidation: Atelectasis, Pneumonia, Edema, Hemorrhage, Bronchogenic carcinoma, Eosinophilic pneumonia, Alveolar proteinosis




Air Crescent Sign

Lesion in preexisting cavity, Aspergilloma




Apical Cap

Pancoast tu




Aortic Nipple

Left Superior Intercostal Vein




Bat-Wing Sign

Pulmonary edema, P. hemorrhage, PCP pneumonia, Inhalation injury




Bowing Fissure Sign

Atelectasis, Bronchogenic Carcinoma


Bulging Fissure Sign

Klebsiella pneumonia aka Friedlander pneumonia


Cervicothoracic sign




Comet-tail Sign

Rounded Atelectasis


Continuous Diaphragm Sign

Pneumomediastinum, Pneumopericardium


CT Angiogram Sign

enhancing vessels, Bronchogenic Carcinoma, PNA, Lymphoma


Deep Sulcus Sign

PMX on supine view


Double-lesion Sign:

atelectasis of 2 segments not supplied by one bronchus ie Right Upper and Middle Lobes suggestive of BENIGN lesion as tumor usually obstructs one bronchus and causing atelectasis distal to the obstruction; bronchus intermedius supply RML and RLL (so atelectasis of RML and RLL is suggestive of obstructed bronchus intermedius by tumor [or intubation into b.intermedius]); Lingula and LLL shares same bronchus


Enlarged cardiac silhouette

pericardial effusion, CHF, cardiomyopathy


Fallen lung sign

lung collapse with fractured bronchus


Flat Waist Sign

flattening (straightening) of the L heart border with LLL atelectasis


Fleeting opacities

Eosinophilic PNM


Finger-In-Glove Sign

bronchiectasis filled with mucus, ABPA (Aspergillus), Cystic Fibrosis, mucus plugged bronchi distal to tumor obstruction, clustered-grape appearance


Golden’s S Sign

elevation of the lateral aspect of the minor fissure due to RUL atelectasis and downward convexity of the medial aspect due to hilar mass - Lung cancer


Hilum overlay Sign

Anterior or Posterior mediastinal mass


Halo Sign

Hemorrhage around nodule, Leukemia - invasive Aspergillosis - GGO


Hampton Hump Sign

infarction from PE, peripheral opacification, has to contact pleural surface, often rounded


Juxtaphrenic peak sign

middle hemidiaphragm pointing up, upper lobe atelectasis


Kerley B lines

interlobular septal thickening, edema, fibrosis, infiltration


Luftsichel sign

a sickle like lucency around aortic arch w/ LUL atelectasis. Upper segment of LLL becomes hyperareated - around aortic arch. Suggest bronchogenic carcinoma in adults


Melting Ice Cube Sign

Resolving pulmonary infarct


Mogul sign

Aortic Coarctation


Oreo cookie sign

black in the middle, pericardial effusion


Reverse Bat-Wing Sign

Eosinophilic Pneumonia, Cryptogenic Organizing PNM, Sarcoid, Rad. Pneumonitis, Lung Contusion, Bronchogenic Carcinoma


Ring around the artery

Pneumomediastinum


Silhouette sign




Spine sign

LLL consolidation, mass, too white


Split pleura sign

enhancing pleura, empyema


Thoracoabdominal sign

mass located in posterior mediastinum


Water bottle heart

Pericardial effusion


Westermark sign

oligemia behind occluded vessel with PE