9 results
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
failure, COPD, Lung ... Evaluation: Imaging (CXR ... +/- High res CT ... Infectious Diseases ... diagnosis #evaluation #differential
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
Pulmonary Renal ... anti-GBM ab, ANA, C3, C4 ... , anti-CCP • CXR ... resolution chest CT ... #differential #
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
throughout the lungs ... thyroid, melanoma, renal ... #diagnosis #pulmonary ... #CXR #clinical ... #CT
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
Pulmonary Renal ... Other tests: • CT ... sparing of the lung ... seen on chest CT ... #differential #
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Blood cultures • CXR ... ) • CXR upright ... seen • Chest CT ... #Abscess #pulmonary ... #differential #
Incidental Finding of Oleothorax - A chest radiograph showed a dense opacity in the upper area
The differential ... treatment for pulmonary ... collapse the involved lung ... PCC #Radiology #CXR ... #Oleothorax #NEJM
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
in HIV - Differential ... Diagnosis Framework Disease ... • CT: Halo sign ... Infections #HIV #AIDS #pulmonary ... #differential #
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
Illnesses: • Pulmonary ... complicate MAC pulmonary ... Advanced HIV (CD4 ... Imaging, high res CT ... NTM #Infections #differential
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Connective tissue diseases ... in the adjacent lung ... of the affected lung ... high-resolution chest CT ... #differential #