15 results
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
- Differential Diagnosis ... Framework Disease ... angioinvasive disease ... • CT: Halo sign ... #differential #diagnosis
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
failure, COPD, Lung ... +/- High res CT ... chest scan), CBC ... Infectious Diseases ... HIVAIDS #workup #diagnosis
Chronic Cough - Differential Diagnosis Algorithm
Red Flags:
 • Fever, night sweats, chills (infection)
 • Weight loss,
- Differential Diagnosis ... disease or CHF) ... lymadenopathy, clubbing, chest ... ) • Abnormal CXR ... refer + order CT
Venn Diagram - Does this patient have pneumonia?
Diagnosis is generally based on three lines of evidence:
Diagnosis is generally ... evidence of a chest ... infiltrate (e.g., CXR ... , CT, ultrasound ... #Pneumonia #Venn
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... : Pleuritic chest ... Blood cultures • CXR ... ) • CXR upright ... CT Lung Abscess
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
throughout the lungs ... hematogenous spread of a disease ... rarely typical pneumonia ... #pulmonary #CXR ... #clinical #CT
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
Differential Diagnosis ... anti-GBM ab, ANA, C3, C4 ... , anti-CCP • CXR ... high resolution chest ... CT • Bronchoscopy
CT and ultrasonographic features of COVID-19 pneumonia
Lung CT:
 - Thickened pleura
 - Ground glass shadow and
features of COVID-19 pneumonia ... Lung CT: - Thickened ... progress of the disease ... Lung ultrasound ... #ChestCT #Ultrasound
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
late adulthood • Diagnosis ... • Chronic lung ... lymphocytic interstitial lung ... Chest CT: • Ground-glass ... community-acquired infections: Pneumonia
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
Advanced HIV (CD4 ... • Dyspnea, • Chest ... Diagnosis Of NTM ... Lung Disease: ... Imaging, high res CT