22 results
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... loss, lethargy, fever ... • Fever, weight ... Microsporidium #Lung #Infections ... #HIV #AIDS #pulmonary
High Attenuation pattern 
1. Chronic eosinophilic pneumonia with peripheral areas of ground glass opacity.
2. Sarcoid end-stage
High Attenuation pattern ... Chronic eosinophilic pneumonia ... consolidation #Clinical #Radiology ... #HRCT #CTChest ... #Comparison #Table
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
High Attenuation pattern ... Cryptogenic organizing pneumonia ... #Clinical #Radiology ... #HRCT #CTChest ... #Comparison #Table
Interstitial pneumonias
An acute reticular pattern is most frequently caused by interstitial edema due to cardiac heart
Interstitial pneumonias ... acute reticular pattern ... cough and some fever ... This was a PCP-infection ... #Clinical #Radiology
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
The fourth pattern ... on the basis of HRCT ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... Differential #Diagram #Comparison
Nodular pattern(2)
1. Sarcoidosis: nodules with perilymphatic distribution, along fissures, adenopathy.
2. TB: Tree-in-bud appearance in a patient
Nodular pattern( ... bronchiolitis in infection ... #Clinical #Radiology ... #HRCT #CTChest ... #Comparison #Table
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
have specific patterns ... morphologic findings on HRCT ... realise, that these patterns ... #Diagnosis #Radiology ... #Pulmonary #CTChest
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
Miliary Pattern ... - Chest Radiology ... rarely typical pneumonia ... #Chest #Radiology ... differential #diagnosis #pulmonary
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
cough, dyspnea, fever ... consolidation and GG pattern ... , cavities • HRCT ... , Pulmonary lymphoma ... #COP #BOOP #pulmonary
Approach to Eosinophilic Lung Diseases
 • Acute Eosinophilic Pneumonia (< 1 wk) - ~30yo, M; Recent
initiation of smoking; Fever ... brown sputum, fever ... , CNS, skin • Infectious ... Travel hx, food hx; Fever ... Lung #Diseases #pulmonary