30 results
Causes of Relative Bradycardia - Note the propensity for intracellular organisms.
Infectious: 
Legionella, Psittacosis, Q fever, Typhoid
Causes of Relative ... : ß-blockers, CNS ... #differential # ... diagnosis #infectiousdiseases ... #table #NonInfectious
Chronic Cough - Differential Diagnosis Algorithm
Red Flags:
 • Fever, night sweats, chills (infection)
 • Weight loss,
Chronic Cough - Differential ... Red Flags: • Fever ... Dyspnea (underlying lung ... ) • Abnormal CXR ... Diagnosis #Algorithm #causes
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
in HIV - Differential ... Lymphadenopathy, CNS ... factor • May cause ... AIDS #pulmonary #differential ... #diagnosis #infectiousdiseases
Approach to Eosinophilic Lung Diseases
 • Acute Eosinophilic Pneumonia (< 1 wk) - ~30yo, M; Recent
initiation of smoking; Fever ... brown sputum, fever ... , wt loss; CV, CNS ... Travel hx, food hx; Fever ... diagnosis #comparison #table
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
• Most common cause ... : • 80% have fever ... Blood cultures • CXR ... early disease) • CXR ... Abscess Differential
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
CNS Ring-Enhancing ... lesions • 80% with lung ... Lesions #Brain #differential ... #diagnosis #causes ... #radiology #neurology
Causes of Pericardial Effusion - Differential Diagnosis
Infectious:
 • Viral: Enterovirus, Herpesvirus, Adenovirus, Parvovirus
 • Bacterial: Mycobacterium
Causes of Pericardial ... Effusion - Differential ... Mediterranean Fever ... - Metastatic: Lung ... #cardiology
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
HIV / AIDS - Differential ... • Symptoms: Fever ... • Symptoms: Fever ... opportunistic #InfectiousDiseases ... #Neurology
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... in interstitial lung ... low attenuation (table ... seen and in many cases ... #Diagnosis #Radiology
Guillain–Barré syndrome (GBS)
(aka: Landry–Guillain–Barré–Strohl syndrome:
	Most common cause of acute flaccid paralysis
	Rapidly progressive ascending paralysis & areflexia
	Autonomic
 Most common cause ... Differential diagnosis ... Multiple Sclerosis: CNS ... virus: Headache, fever ... dysfunction, sensory level