6 results
Chronic Cough - Differential Diagnosis Algorithm
Red Flags:
 • Fever, night sweats, chills (infection)
 • Weight loss,
disease or CHF) ... lymadenopathy, clubbing, chest ... ) • Abnormal CXR ... refer + order CT ... disease #Chronic
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
Autoimmunity • Chronic ... lung disease ... Chest CT: • Ground-glass ... DDX - Other causes ... Malignancies • Chronic
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
pneumonia • Chronic ... Blood cultures • CXR ... ) • CXR upright ... CT Lung Abscess ... #differential #causes
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Loss of weight • Chest ... in the adjacent lung ... of the affected lung ... high-resolution chest ... CT) • Broncho-arterial
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Diagnosis Framework Disease ... • CT: Halo sign ... Abdominal pain, chronic ... factor • May cause ... Infections #HIV #AIDS
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
lung disease ... status NTM Cause ... massiliense in CF ... • Dyspnea, • Chest ... Imaging, high res CT