10 results
Etiologies of pulmonary infections according to CT-scan patterns. 
CMV cytomegalovirus, GM galactomannan, HSV herpes simplex virus,
immunofluorescence, PCR ... - Atypical bacterial ... Patterns #Pulmonary #Lung ... ComputedTomography #Differential ... #Diagnosis #Chest
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
• CD4 < 200: PCP ... failure, COPD, Lung ... Fungal, AFB), TB PCR ... sputum, PCP DFA ... diagnosis #evaluation #differential
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
in HIV - Differential ... tuberculosis, Bacterial ... , and fever BACTERIAL ... : • PVL virulence ... AIDS #pulmonary #differential
A lobar consolidation located cephalad to the diaphragm. The branching, hyperechoic air bronchograms define this consolidation.
#Clinical #EM #Radiology ... #PCC #POCUS #Lung ... #Sagittal #Pneumonia
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Clindamycin in case of PCN ... Pathogens: • Aerobic Bacteria ... Bacteria: - Bacteroides ... Abscess Differential ... Abscess #pulmonary #differential
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
toxo IgG • CNS PCR ... lesions • 80% with lung ... Infectious: • Bacterial ... Lesions #Brain #differential ... diagnosis #causes #radiology
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
Radiology • Miliary ... throughout the lungs ... - Select Bacteria ... rarely typical pneumonia ... #Radiology #differential
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
or interstitial lung ... bronchiolitis, PCP ... bronchiolitis #Diagnosis #Radiology ... #Pulmonary #CTChest ... #GroundGlass #Differential
Crazy Paving is a combination of ground glass opacity with superimposed septal thickening (5).
It was first
NSIP - Organizing pneumonia ... ) - Infection (PCP ... viral, Mycoplasma, bacterial ... AIP) #Clinical #Radiology ... #CTChest #CrazyPaving
Incidental Finding of Oleothorax - A chest radiograph showed a dense opacity in the upper area
Oleothorax - A chest ... area of the left lung ... The differential ... #Clinical #PCC # ... Radiology #CXR #