24 results
Causes of Hemoptysis - Differential Diagnosis Algorithm
Massive Hemoptysis (>I00 mL in 24 hours)
 • Malignancy
 •
Diagnosis Algorithm ... Malformation Normal CXR ... /CT • Hematemesis ... Bronchitis Diffuse CT ... Vasculitis Infection
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
symptomatology Differential ... Diagnosis for Pulmonary ... allopurinol), Infection ... • CXR (diffuse ... resolution chest CT
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
Diagnosis of Miliary ... Opacities: • Infectious ... #diagnosis #pulmonary ... #CXR #clinical ... #CT
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
Pulmonary Infections ... Evaluation: Imaging (CXR ... +/- High res CT ... #workup #diagnosis ... #evaluation #differential
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT ... Patterns - Differential ... Diagnosis Framework ... HighRes #Chest #CT ... #Diagnosis #pulmonary
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
Other tests: • CT ... confirm DAH, r/o infection ... seen on chest CT ... Renal #Syndromes #differential ... #treatment
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
parenchyma Diagnosis ... high-resolution chest CT ... mycobacteria Treatment ... #differential # ... diagnosis
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
polymicrobial infection ... Blood cultures • CXR ... seen • Chest CT ... Lung #Abscess #pulmonary ... #differential #
Bronchiectasis - Permanent dilation of an airway
WHAT CAN YOU SEE ON CT?
1) Lack of tapering of
an airway WHAT CAN ... YOU SEE ON CT? ... Immunodeficiency 3) Infection ... Bronchiectasis #pulmonary ... #diagnosis #differential
Broncholithiasis - Differential Diagnosis Framework

 • Also known as: Lung stones, pulmoliths, pneumoliths, bronchial calculi
 •
Broncholithiasis - Differential ... control of the infection ... bronchus • Chest CT ... Broncholithiasis #Differential ... #Diagnosis #pulmonary