9 results
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... there are four patterns ... low attenuation (table ... seen and in many cases ... #Pattern #Differential
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
- Pus - exsudate ... to look at the pattern ... more than one pattern ... lobar pneumonia caused ... called cryptogenic (COP
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
Unknown • 6-7 cases ... consolidation and GG pattern ... other processes Workup ... workup: ANA, RF ... Pulmonary lymphoma, Diffuse
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Causes of Chronic ... Dyspnea - Differential ... Diagnosis Algorithm ... Neoplasm Pulmonary Interstitium ... • ILD • CHF
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
mononeuritis multiplex WORKUP ... EGPA • ESR and CRP ... Goodpasture's cause ... hemorrhage (DAH) • Diffuse ... • IF staining patterns
Causes of Chronic Cough - Differential Diagnosis Algorithm

Abnormal Chest X-Ray:
 • Chronic Infection (Eg. Fungal, Tuberculosis)
Causes of Chronic ... Abnormal Chest X-Ray ... • Neoplasm • CHF ... • Interstitial ... • Asthma • COPD
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tract, and often causes ... inflammatory lesions-interstitial ... • ANA (Suggest CTD ... - (C-ANCA) pattern ... - (P-ANCA) pattern
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... Elevated ESR and CRP ... matter changes ... tract, and often causes ... inflammatory lesions - interstitial
Autoimmune Myositis - Differential Diagnosis Framework

Inflammatory Myopathies: Commonly symmetric proximal muscle weakness, no substantial muscle pain
Autoimmune Myositis - Differential ... slow onset and pattern ... aspiration > 50% of pts ... statins - probably caused ... #rheumatology #differential