27 results
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
lesions • 80% with lung ... splenomegaly Other infections ... multiple lesions Infectious ... Lesions #Brain #differential ... diagnosis #causes #radiology
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
acidosis: - Diarrhea ... Anxiety, pain, fever ... acidosis: - CNS ... or restrictive lung ... disease (COPD,
CNS Ring-Enhancing Lesions - Differential Diagnosis
 • Infections: Cerebral abscess (bacterial, fungal, parasitic), Neurocysticercosis, Tuberculoma, Cerebral
Lesions - Differential ... Diagnosis • Infections ... Malignancy: Metastases (lung ... Demyelinating Disease ... Diagnosis #neurology #radiology
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
50,000 patients • Avg ... • Chronic lung ... diarrhea • ... lymphocytic interstitial lung ... and M panel Management
Approach to Eosinophilic Lung Diseases
 • Acute Eosinophilic Pneumonia (< 1 wk) - ~30yo, M; Recent
to Eosinophilic Lung ... Diseases • Acute ... , wt loss; CV, CNS ... , skin • Infectious ... #differential #
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... in HIV - Differential ... Diagnosis Framework Disease ... angioinvasive disease ... Lymphadenopathy, CNS
Travel History - Clues to Infectious Disease Diagnosis in a Traveler 
 • Where did you
Disease Diagnosis ... association • How long ... → Travelers' diarrhea ... Rabies, cat scratch fever ... #differential #
Causes of Pericardial Effusion - Differential Diagnosis
Infectious:
 • Viral: Enterovirus, Herpesvirus, Adenovirus, Parvovirus
 • Bacterial: Mycobacterium
Diagnosis Infectious ... Mediterranean Fever ... , Takayasu Disease ... - Metastatic: Lung ... Diagnosis #Causes #cardiology
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
Presentation: Fever ... liver enzymes, diarrhea ... Manifestations: • Fever ... • Fever and weight ... #differential #
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
and Management ... polymicrobial infection ... : • 80% have fever ... Intervention: - Fevers ... Abscess Differential