11 results
Hemoptysis - Differential Diagnosis Framework
Massive Hemoptysis: >150-300 mL in 24h
Airway disease: 
 • Bronchitis, Bronchiectasis, Malignancy
Malignancy: Primary lung ... AVM, Thoracic aortic ... aneurysm Misc ... Postprocedural, Lung ... #causes
Bronchiectasis - Permanent dilation of an airway
WHAT CAN YOU SEE ON CT?
1) Lack of tapering of
segment or lobe of lung ... /Autoimmune diseae ... 7) Recurrent Aspiration ... Bronchiectasis #pulmonary ... #diagnosis #differential
Chronic Abdominal Pain Causes - Differential Diagnosis Framework

Many patients with chronic abdominal pain have had prior
Chronic Abdominal ... Pain Causes - Differential ... Long-standing vs ... aortic aneurysms ... #Causes #Differential
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Cystic fibrosis • Aspiration ... in the adjacent lung ... of the affected lung ... Laboratory: • ANA ... #differential #
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
lung disease ... status NTM Cause ... tank disease: Aspiration ... enzymes, diarrhea, abdominal ... NTM #Infections #differential
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Eosinophilia, asthma, chronic ... tract, and often causes ... - GI tract: abdominal ... aneurysm • Medium ... #diagnosis #rheumatology
Broncholithiasis - Differential Diagnosis Framework

 • Also known as: Lung stones, pulmoliths, pneumoliths, bronchial calculi
 •
Broncholithiasis - Differential ... Also known as: Lung ... • Nonspecific chronic ... erosion into the aorta ... Sarcoidosis • Aspiration
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
verrucous) • Lung ... regurgitation • Autoimmune ... Cerebral > Splenic, pulmonary ... lesions • Mycotic aneurysm ... Marantic (NTBE) Differential
Autoimmune Myositis - Differential Diagnosis Framework

Inflammatory Myopathies: Commonly symmetric proximal muscle weakness, no substantial muscle pain
• Interstitial lung ... Risk: Ovarian, lung ... • Interstitial lung ... Risk: Ovarian, lung ... • Interstitial lung
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
< 30 years • Aorta ... Eosinophilia, asthma, chronic ... tract, and often causes ... Thrombosis and arterial aneurysms ... #Diagnosis #Rheumatology