19 results
Cavitary Lung Disease - Differential Diagnosis and Workup Algorithm
Acute / Subacute:
 • Acute Infections: Lung abscess,
- Differential ... Diagnosis and Workup Algorithm ... abscess, Necrotizing Pneumonia ... Autoimmunity: RA, GPA ... Disease #Diagnosis #Algorithm
Granulomatous Lung Disease - Differential Diagnosis Algorithm
OP: organising pneumonia; EGPA: eosinophilic granulomatosis with polyangiitis; NSG: necrotising
Disease - Differential ... Diagnosis Algorithm ... OP: organising pneumonia ... granulomatosis; GPA ... #Diagnosis #Algorithm
Feeding Vessel Sign on Chest CT
 • Distinct pulmonary vessel leading into a lung nodule or
Sign on Chest CT ... , pulm AVM, GPA ... #Vessel #Sign #CT ... #diagnosis #radiology ... #clinical
Halo Sign on Chest CT
 • SPN or mass surrounded by a circumferential GGO
 • DDx:
Sign on Chest CT ... mueormycosis, GPA ... #Halo #Sign #CT ... #diagnosis #radiology ... #clinical
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
Pattern - Chest Radiology ... throughout the lungs ... rarely typical pneumonia ... pulmonary #CXR #clinical ... #CT
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
for Klebsiella pneumonia ... Lung Abscess - Clinical ... seen • Chest CT ... Abscess Differential ... Abscess #pulmonary #differential
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
identified, Strep pneumoniae ... Streptococcus Grp ... failure, COPD, Lung ... CXR +/- High res CT ... diagnosis #evaluation #differential
Notice that there are multiple densities in both lungs.
The larger ones are ill-defined and maybe there
densities in both lungs ... dealing with the differential ... excludes eosinophilic pneumonia ... of organizing pneumonia ... #Clinical #Radiology
Cheerio Sign (Open Bronchus Sign) on Chest CT
 • Pulmonary nodule with a central lucency
 •
Sign) on Chest CT ... and metastatic lung ... rheumatoid nodules, GPA ... #diagnosis #radiology ... #clinical
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
Classification grp ... Pulmonary Disease: Clinical ... Disease: • Clinical ... Imaging, high res CT ... NTM #Infections #differential