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Based on the images alone, it is usually not possible to determine the cause of the
like acute or chronic ... between these chest ... oxygen level and high ... this is nodular interstitial ... Diagnosis #Radiology #CXR
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
pneumonia • formerly BOOP ... - Imaging: • CXR ... • HRCT: patchy consolidation ... organizing pneumonia, Chronic ... #BOOP #pulmonary
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
Chronic diseases ... Cells - tumor, chronic ... The old name is BOOP ... Diagnosis #Radiology #Pulmonary ... #CXR #Consolidation
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT ... Lymphangitic Carcinoma, Interstitial ... Acute Eos PNA • Chronic ... , Chronic Eos PNA ... Hemorrhage, Edema • Consolidation
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
Pulmonary Infections ... Lymphocytic or lymphoid interstitial ... Evaluation: Imaging (CXR ... +/- High res CT ... chest scan), CBC
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Loss of weight • Chest ... Physical stigmata of cor ... centrilobular nodules, or consolidation ... Diagnosis: • HRCT (high-resolution ... Laboratory: • ANA, RF, CCP
Congestive heart failure (CHF) is the result of insufficient output because of cardiac failure, high resistance
heart failure (CHF ... cardiac failure, high ... fluid into the interstitium ... can be seen on a chest-film ... #CXR #Features
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
• Pleuritic CP ... dyspnea • Lobar consolidation ... Abdominal pain, chronic ... fever, rales, interstitial ... Infections #HIV #AIDS #pulmonary
Cryptococcal meningitis on T2 MRI
30 M from sub-Saharan Africa presents w/ progressive Headache x1 mo, +neck
prolonged headache, high ... of prior silent pulmonary ... w/ subacute-to-chronic ... flucytosine for 14 days, consolidation ... therapy with high-dose