14 results
COVID-19 Patterns of Lung Findings on Chest CT
1. Reverse Halo Sign
2. ARDS
3. Crazy-Paving Pattern
4. Bilateral Peripheral
CT 1. ... ARDS 3. ... Organizing Pneumonia ... Patterns #Lung #Pulmonary ... ChestCT #radiology #CTChest
Venn Diagram - Does this patient have pneumonia?
Diagnosis is generally based on three lines of evidence:
infiltrate (e.g., CXR, CT ... , ultrasound) - ... procalcitonin) - Pulmonary ... pain) and signs ... Diagram #Diagnosis #Pulmonolary
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
Associated Lung Ultrasound ... pleura reflection) Pneumonia ... cases - Dynamic air ... Distress Syndrome (ARDS ... #Lung #POCUS #ultrasound
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
Pulmonary Infections ... in HIV-AIDS Bacterial ... • CD4 < 200: Pulmonary ... CXR +/- High res CT ... chest scan), CBC
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... • CT: Halo sign ... : • Chest pain ... Microsporidium #Lung #Infections ... #HIV #AIDS #pulmonary
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
diffuse inhalational injury ... Opacities: • Infectious ... rarely typical pneumonia ... differential #diagnosis #pulmonary ... CXR #clinical #CT
Differential diagnosis of the reversed halo sign (RHS). AIA, angioinvasive aspergillosis; AIS, adenocarcinoma in situ; COP,
reversed halo sign ... aspergillosis; AIS ... ; PZ, pulmonary ... hypersensitivity pneumonitis, infection ... #Diagnosis #Pulmonary
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
bronchial wall injury ... Nasal polyps and signs ... thickening, presence of air-fluid ... • Pulmonary artery ... CT) • Broncho-arterial
Bilateral B-Lines in case of Pneumonia on Lung POCUS

Young healthy pt with fever/dyspnea. POCUS lung exam
/lung sliding: Pulmonary ... edema, ARDS, interstitial ... interstitial diffuse infections ... partially seen shred sign ... POCUS #clinical #ultrasound
Hampton hump is a radiologic sign which consists of a shallow wedge-shaped opacity in the periphery
is a radiologic sign ... hump along may aid ... the diagnosis of pulmonary ... In this case, pulmonary ... CT angiography.