14 results
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
, Cryptococcal pneumonia ... Aspergillus Pneumonia ... • CT: Halo sign ... - 20% of pneumonias ... Infections #HIV #AIDS #pulmonary
COVID-19 Patterns of Lung Findings on Chest CT
1. Reverse Halo Sign
2. ARDS
3. Crazy-Paving Pattern
4. Bilateral Peripheral
Findings on Chest CT ... Reverse Halo Sign ... Halo Sign 6. ... Organizing Pneumonia ... Patterns #Lung #Pulmonary
Community Acquired Pneumonia (CAP) - Diagnosis and Management

Pneumonia Signs/Symptoms:
 • Confusion/disorientation (LR + 1.9)
 • Cough
Community Acquired ... Signs/Symptoms: ... radiograph or CT ... Management #treatment #Pulmonary ... #Community #Acquired
Venn Diagram - Does this patient have pneumonia?
Diagnosis is generally based on three lines of evidence:
this patient have pneumonia ... infiltrate (e.g., CXR, CT ... procalcitonin) - Pulmonary ... chest pain) and signs ... #Pneumonia #Venn
Good example of 'shred sign' in a patient with fever, cough and shortness of breath. 

This
example of 'shred sign ... on CXR/CT imaging ... eabramsMD #Shred #sign ... #photo #ultrasound ... #lung #pulmonary
HRCT findings in Chronic eosinophilic pneumonia
Peripheral consolidations with upper lobe predominance (photo negative of pulmonary edema).
On
Chronic eosinophilic pneumonia ... predominance (photo ... negative of pulmonary ... contrast enhanced CT ... #Eosinophilic #Pnemonia
Differential diagnosis of the reversed halo sign (RHS). AIA, angioinvasive aspergillosis; AIS, adenocarcinoma in situ; COP,
reversed halo sign ... OP, organising pneumonia ... ; PZ, pulmonary ... patients with acquired ... #Diagnosis #Pulmonary
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
Chest CT: • Ground-glass ... severe community-acquired ... infections: Pneumonia ... hypogammaglobulinemia #immunology #hematology
Hampton hump is a radiologic sign which consists of a shallow wedge-shaped opacity in the periphery
is a radiologic sign ... the diagnosis of pulmonary ... In this case, pulmonary ... confirmed with chest CT ... #photo #CXR #EmergencyMedicine
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
progressing GN • New pulmonary ... glomerulonephritis and/or pulmonary ... episcleritis as well as inner ... purpura: strong sign ... differential #diagnosis #rheumatology