11 results
Chronic Cough - Differential Diagnosis Algorithm
Red Flags:
 • Fever, night sweats, chills (infection)
 • Weight loss,
sweats, chills (infection ... Dyspnea (underlying lung ... refer + order CT ... History of cancer, lung ... disease #Chronic
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
lung disease ... encounters due to NTM: Chronic ... lung infections ... Imaging, high res CT ... differential #diagnosis #infectiousdiseases
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
Autoimmunity • Chronic ... lung disease ... lymphocytic interstitial lung ... Chest CT: • Ground-glass ... Malignancies • Chronic
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
Pulmonary Infections ... in HIV-AIDS Bacterial ... failure, COPD, Lung ... CXR +/- High res CT ... Diseases Fellows
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
polymicrobial infection ... pneumonia • Chronic ... • Periodontal disease ... loss • Late disease ... seen • Chest CT
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... • CT: Halo sign ... Abdominal pain, chronic ... #AIDS #pulmonary ... differential #diagnosis #infectiousdiseases
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Connective tissue diseases ... pulmonale, in advanced disease ... in the adjacent lung ... of the affected lung ... high-resolution chest CT
Broncholithiasis - Differential Diagnosis Framework

 • Also known as: Lung stones, pulmoliths, pneumoliths, bronchial calculi
 •
Also known as: Lung ... control of the infection ... • Nonspecific chronic ... bronchus • Chest CT ... Tracheobronchial Diseases
Squamous-Cell Carcinoma of the Lung- ...Physical examination revealed decreased air entry in the base of the
Carcinoma of the Lung ... base of the right lung ... indicated stage IV disease ... #NEJM #clinical ... #radiology #CT #
Disseminated Actinomycosis- ...Computed tomography of the chest and abdomen revealed multiple pulmonary nodules (Panel A) associated
effusions in both lungs ... Biopsy of the lung ... progressive bacterial infection ... #NEJM #clinical ... #radiology #CT #