7 results
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
• Affects 1:25,000 ... and 1:50,000 patients ... lung disease ... Chest CT: • Ground-glass ... DDX - Other causes
Algorithm for the Evaluation of Chronic Diarrhea (< 7 days)
Exclude:
1. Causes of acute diarrhea
2. Lactose intolerance
3.
days) Exclude: 1. ... Causes of acute ... Parasitic infections ... Systemic disease ... imaging with barium, CT
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
and Management ... polymicrobial infection ... pneumonia • Chronic ... Pathophysiology: 1. ... seen • Chest CT
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
lung disease ... status NTM Cause ... lung infections ... patients such as: 1. ... Imaging, high res CT
Pulmonary Nodule
Evaluation is guided by nodule size & assessment of probability of malignancy. In addition is
masses & should ... malignancy is < 1% ... nodules < 6 mm and 1% ... comorbidities, such as chronic ... Management options
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... • CT: Halo sign ... Abdominal pain, chronic ... factor • May cause ... #AIDS #pulmonary
Achalasia Summary

Epidemiology: 10 cases per 100,000 individuals

Defined by inadequate relaxation of the LES and aperistalsis
Primary or
unclear DDX: 1. ... of dysphagia (<1 ... evaluated with CT ... Achalasia #diagnosis #management ... #treatment #gastroenterology