14 results
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
spaces with pus, edema ... lung disease (i.e ... Hypersensitivity pneumonitis ... #GroundGlass #Differential ... #RadiologyAssistant
Notice the honeycombing and the preference of the subpleural and basal lung areas. #Clinical #Radiology #CTChest
subpleural and basal lung ... areas. ... Clinical #Radiology #CTChest ... #Pneumonitis #ILD ... #RadiologyAssistant
Notice the honeycombing and the preference of the subpleural and basal lung areas. #Clinical #Radiology #CTChest
subpleural and basal lung ... areas. ... Clinical #Radiology #CTChest ... #Pneumonitis #LowerLungPredominance ... #ILD #RadiologyAssistant
Radiographic appearances of pulmonary diseases in HIV/AIDS Patients
 • Diffuse Interstitial Infiltrates: Pneumocystis jirovecii, M.tuberculosis, Histoplasma
Patients • Diffuse Interstitial ... pneumonitis, Abacavir ... toxicity, Pulmonary edema ... Actinomyces spp., NHL; Lung ... pulmonary #diseases #differential
CT will also demonstrate signs of congestive heart failure.
On the image on the left notice the
septal lines due to interstitial ... dependent part of the lungs ... be high in the differential ... Clinical #Radiology #CTChest ... #Septal #RadiologyAssistant
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
Thickening of the lung ... lung disease, it ... has a limited differential ... pulmonary edema ... #RadiologyAssistant
Upper Lobe Lung Diseases - STAR CHASERS Mnemonic

S - Silicosis
T - Tuberculosis
A - Ankylosing Spondylitis
R -
Hypersensitivity Pneumonitis ... caused by a rigid chest ... localized pulmonary edema ... Neurogenic pulmonary edema ... #diseases #differential
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Mismatch: Pulmonary Edema ... Embolism, Obstructive Lung ... Disease, Interstitial ... Lung Disease ... Hypoxia #hypoxemia #differential
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... in HIV - Differential ... pneumonia, pleural effusion ... fever, rales, interstitial ... AIDS #pulmonary #differential
On the left a patient who is treated with cytotoxic drugs for a hematologic malignancy.
The radiographic
and non-specific interstitial ... consider drug-related lung ... disease in the differential ... Clinical #Radiology #CTChest ... DrugRelated #Fibrosis #RadiologyAssistant