11 results
Halo Sign on Chest CT
 • SPN or mass surrounded by a circumferential GGO
 • DDx:
Halo Sign on Chest ... circumferential GGO • DDx ... #Sign #CT #Lung ... #Pulmonary #diagnosis ... #radiology #clinical
Split Pleura Sign on Chest CT
 • Contrast enhancement of the parietal and visceral pleura, separated
Split Pleura Sign ... exudative effusion • DDx ... : Empyema, malignant ... #Sign #CT #Lung ... #Pulmonary #diagnosis
Atoll Sign (Reverse-Halo Sign) on Chest CT
 • Central GGO surrounded by a crescentic or circumferential
Atoll Sign (Reverse-Halo ... consolidation • DDx ... #Sign #CT #Lung ... #Pulmonary #diagnosis ... #radiology #clinical
Sand Storm Sign on Chest CT
 • Diffusely dense pulmonary micronodular calcifications. Note the black pleural
Note the black pleural ... ) • DDx: PAM https ... #CT #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
Comet Tail Sign on Chest CT
 • Curvilinear pleural based opacity directed towards the ipsilateral hilum
• Curvilinear pleural ... ipsilateral hilum • DDx ... #CT #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
Cheerio Sign (Open Bronchus Sign) on Chest CT
 • Pulmonary nodule with a central lucency
 •
central lucency • DDx ... malignancy, rheumatoid ... #CT #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
with CTD, drugs, malignancy ... Organizing Pneumonia - Clinical ... , pleural thickening ... Anti-dsDNA, ANCA COP DDX ... #ILD #diagnosis
Crazy Paving on Chest CT
 • Thickened interlobular septa in a background of diffuse GGO's.
 •
DDx: PAP, pulm ... Crazy #Paving #Sign ... #CT #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
disease • DM DDX ... characteristic features Clinical ... organ system: • Pleura ... tracheobronchial stenosis, malignancy ... Tuberculosis Diagnosis
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
disease • DM DDX ... characteristic features Clinical ... organ system: • Pleura ... tracheobronchial stenosis, malignancy ... Tuberculosis Diagnosis