16 results
COVID-19 Patterns of Lung Findings on Chest CT
1. Reverse Halo Sign
2. ARDS
3. Crazy-Paving Pattern
4. Bilateral Peripheral
of Lung Findings ... ARDS 3. ... #Lung #Pulmonary ... ChestCT #radiology #CTChest ... #diagnosis
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... lung disease comes ... lung disease and ... #Diagnosis #Radiology ... #Pulmonary #CXR
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
lung disease (i.e ... in ground glass pattern ... bronchiolitis #Diagnosis ... #Radiology #Pulmonary ... #CTChest #GGO #
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
The idiopathic interstitial ... have specific patterns ... realise, that these patterns ... #Diagnosis #Radiology ... #Pulmonary #CTChest
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
in HIV-AIDS Bacterial ... failure, COPD, Lung ... Lymphocytic or lymphoid interstitial ... /- High res CT chest ... HIVAIDS #workup #diagnosis
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
: Atelectasis, ARDS ... Disease, Interstitial ... Fibrosis, Interstitial ... Lung Disease ... #differential #diagnosis
Etiologies of pulmonary infections according to CT-scan patterns. 
CMV cytomegalovirus, GM galactomannan, HSV herpes simplex virus,
Etiologies of pulmonary ... immunofluorescence, PCR ... #Pulmonary #Lung ... #Differential #Diagnosis ... #Chest
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
Thickening of the lung ... cells results in a pattern ... lung disease, it ... pulmonary edema ... #Pulmonary #HRCT
Berlin Criteria for Acute Respiratory Distress Syndrome (ARDS) 
- Respiratory symptoms must have begun within one
consistent with pulmonary ... be present on a chest ... lobar collapse, lung ... Definition #Criteria #Diagnosis ... #CriticalCare
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
- Differential Diagnosis ... Pneumonia: • PVL ... fever, rales, interstitial ... Infections #HIV #AIDS ... #pulmonary #differential