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Radiologists use many terms to describe areas of decreased density or lucencies within the lung, like
, like cyst, cavity ... visible wall #CXR ... #Lucency #Differential ... #Cyst #Lung #Pulmonary ... #Diagnosis #Radiology
Feeding Vessel Sign on Chest CT
 • Distinct pulmonary vessel leading into a lung nodule or
CT • Distinct ... leading into a ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
Monod Sign on Chest CT
 • Air surrounding a fungal ball in a preexisting pulmonary cavity
a preexisting pulmonary ... cavity • DDx: ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
the surrounding lung ... associated pulmonary ... #Clinical #Diagnosis ... #Radiology #CTChest ... #Cavity #Cyst #
Halo Sign on Chest CT
 • SPN or mass surrounded by a circumferential GGO
 • DDx:
CT • SPN or mass ... surrounded by a ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
CT demonstrates ... in the proper clinical ... #Clinical #Radiology ... #CXR #CTChest # ... #SepticEmboli #Cavity
Water Lily Sign (Camalote Sign) on Chest CT
 • Hydatid cyst in the lung with a
CT • Hydatid cyst ... a free-floating ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
Cavitary Lesion with Air-Fluid Level on Chest XRay

70+ year old man with PMH of latent TB
Cavitary Lesion ... treatment and a ... #Cavitary #CXR ... #ChestXRay #Clinical ... #Pulmonary #Radiology
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
cysts (LAM, LIP ... diseases with a ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... LowAttenuation #Differential
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
On a Chest X-Ray ... On a CXR the most ... When the cysts have ... #Diagnosis #Radiology ... #Pulmonary #CXR