8 results
Halo Sign on Chest CT
 • SPN or mass surrounded by a circumferential GGO
 • DDx:
Halo Sign on Chest ... CT • SPN or mass ... #Sign #CT #Lung ... #Pulmonary #diagnosis ... #radiology #clinical
There is a hydropneumothorax.
Notice the air-fluid level (blue arrow).
The upper lobe is still attached to the
There is a lung ... LAM is a rare lung ... airways leading to pulmonary ... #Clinical #Radiology ... #RadiologyAssistant
Atoll Sign (Reverse-Halo Sign) on Chest CT
 • Central GGO surrounded by a crescentic or circumferential
Sign (Reverse-Halo ... Sign) on Chest CT ... #Sign #CT #Lung ... #Pulmonary #diagnosis ... #radiology #clinical
Sand Storm Sign on Chest CT
 • Diffusely dense pulmonary micronodular calcifications. Note the black pleural
Sign on Chest CT ... arrow) • DDx: PAM ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
There is a hydropneumothorax.
Notice the air-fluid level.
The upper lobe is still attached to the chest wall
There is a lung ... LAM is a rare lung ... airways leading to pulmonary ... #Clinical #Radiology ... #RadiologyAssistant
When a rib fracture heals, the callus formation may create a mass-like appearance (blue arrow).
Sometimes a
Sometimes a CT is ... fracture from a lung ... Notice the large lung ... #Clinical #Radiology ... #Pseudotumor #RadiologyAssistant
Lung infarction
In pulmonar embolism it is not common to see consolidation.
The consolidation is a result of
Lung infarction ... In pulmonar embolism ... On the CT we can ... #Clinical #Radiology ... PulmonaryEmbolism #RadiologyAssistant
Preoperative Risk Evaluation

Major Pre-Op Questions:
1. Does the patient have any modifiable risk factors that could be
history of: a) Ischemic ... event, follow ACC algorithm ... Change in clinical ... one post op Cardiology ... unless prior heart/lung