1443 results
Halo Sign on Chest CT
 • SPN or mass surrounded by a circumferential GGO
 • DDx:
Sign on Chest CT ... invasive pulm aspergillosis ... sarcoidosis, mets to the lung ... #Halo #Sign #CT ... #Lung #Pulmonary
Etiologies of pulmonary infections according to CT-scan patterns. 
CMV cytomegalovirus, GM galactomannan, HSV herpes simplex virus,
infections according to CT-scan ... Bacterial pneumonia - Aspergillosis ... Actinomyces - Aspergillosis ... oxtvmJe1RmlxFFJpzgymkqdNRFOw%3D%3D #CT ... Patterns #Pulmonary #Lung
Air Crescent Sign on Chest CT
 • Crescentic or circumferential rim of radiolucent airspace within a
Sign on Chest CT ... DDx: Invasive aspergillosis ... Crescent #Sign #CT ... #Lung #Pulmonary
Bronchiectasis - Permanent dilation of an airway
WHAT CAN YOU SEE ON CT?
1) Lack of tapering of
CAN YOU SEE ON CT ... segment or lobe of lung ... involving both lungs ... Bronchopulmonary Aspergillosis
Mucoid impaction
Mucus plugs or mucoid impaction can mimick the appearance of lung nodules or a mass.
Sometimes
appearance of lung ... bronchopulmonary aspergillosis ... structures in the right lung ... CT demonstrated
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... Management Summary Lung ... • Necrosis of lung ... seen • Chest CT ... • Fungal: - Aspergillosis
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... kansasii, Invasive aspergillosis ... Mycetoma, Invasive Aspergillosis ... • CT: Halo sign ... cough, myalgia • Lung
Lung Segment Anatomy Annotated on Chest CT
Right Lung:
 • Upper Lobe: Apical, Posterior, Anterior
 • Middle
Lung Segment Anatomy ... Annotated on Chest CT ... bronchopulmonary-segments-annotated-ct ... lang=us #Lung # ... Segments #Chest #CT
IDSA Aspergillosis Treatment
 • Invasive pulmonary aspergillosis (IPA)
 • CNS aspergillosis
 • Cardiac Aspergillus infection
 •
IDSA Aspergillosis ... Invasive pulmonary aspergillosis ... (IPA) • CNS aspergillosis ... ID_fellows #Invasive #Aspergillosis
Pulmonary Aspergillosis
Main Culprits: Aspergillus fumigatus, Less commonly: Aspergillus flavus, Aspergillus terreus
Diagnosis: Characteristic imaging + symptoms +
Pulmonary Aspergillosis ... Acute - Invasive Aspergillosis ... Chronic Necrotizing Aspergillosis ... cavitary pulmonary aspergillosis ... fibrosing pulmonary aspergillosis