82 results
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
disease • ... Granulomatous disease ... • Liver diseases ... disease (GLILD) ... #diagnosis #management
IgG4-Related Disease
Clinical history:  Man, 60 years, multiorgan involvement, unique or multiple inflammatory pseudotumor
4 phenotypes:
 •
IgG4-Related Disease ... concentration PET-CT ... IgG4 #Related #Disease ... #diagnosis #management ... workup #treatment #rheumatology
Connective tissue disease-associated interstitial lung diseases

LIP: lymphoid interstitial pneumonia. NSIP: nonspecific interstitial pneumonia. OP: organizing pneumonia.
Connective tissue disease-associated ... interstitial lung ... diseases LIP ... PSS: Sjogren syndrome ... connective tissue disease
Chronic Cough - Differential Diagnosis Algorithm
Red Flags:
 • Fever, night sweats, chills (infection)
 • Weight loss,
sweats, chills (infection ... Dyspnea (underlying lung ... disease or CHF) ... refer + order CT ... disease #Chronic
Causes of Diffuse Lung Disease. 
Collagen vascular 
 - Scleroderma 
 - Rheumatoid arthritis 
 -
Disease. ... cell arteritis Infectious ... Metabolic storage disease ... chemotherapy #Diagnosis ... #Disease.
Causes of Pericardial Effusion - Differential Diagnosis
Infectious:
 • Viral: Enterovirus, Herpesvirus, Adenovirus, Parvovirus
 • Bacterial: Mycobacterium
Infectious: ... : • Rheumatologic ... : EGPA, Horton Disease ... , Takayasu Disease ... - Metastatic: Lung
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
disease, volume ... disease, adenitis ... disease ... Lung Disease: ... Imaging, high res CT
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
• Periodontal disease ... dentition/gingival disease ... loss • Late disease ... Gingival crevice disease ... in early disease
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
- Compatible syndrome ... lymphoproliferative disease ... lesions • 80% with lung ... • Metastatic disease ... demyelinating diseases
Back Pain - Differential Diagnosis
Primary Back Pathology:
 • Musculoligamentous injury (a.k.a. lumbosacral strain)
 • Spondylosis (i.e.
to metastatic disease ... Systemic Diseases ... Manifestations: • Infection ... (most common: lung ... , Aneurysm • Pancreas