19 results
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
CNS Ring-Enhancing ... + toxo IgG • CNS ... histoplasmosis, cryptococcus ... Lesions #Brain #differential ... #diagnosis #causes
Multiple Cranial Neuropathies - High Yield Differential Diagnosis
 • Intrinsic brainstem process
 • Compressive brainstem process
Neuropathies - High Yield Differential ... Neurosarcoidosis • CNS ... VZV, syphilis, cryptococcus ... #Neuropathies #Differential ... #Diagnosis #causes
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
HIV / AIDS - Differential ... Demyelinating disease caused ... culture positive Cryptococcal ... lesions • CSF cryptococcal ... #Infections #differential
Hypokalemia Differential Diagnosis Algorithm

Low intake 
• poor oral intake 

Renal loss 
• Medication 
• Hypomagnesemia 
•
Hypokalemia Differential ... Diagnosis Algorithm ... Low intake ... #Diagnosis #Algorithm ... #Causes #Classification
Causes of Anemia by Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Low Mean Corpuscular Volume (<80
Causes of Anemia ... Volume (MCV) - Differential ... Diagnosis Algorithm ... Low Mean Corpuscular ... #Anemia #MCV #Classification
Causes of Hypomagnesemia - Differential Diagnosis Algorithm
GI LOSS - FeMg < 2-2.5% or 24h Urine Mg
- Differential ... Diagnosis Algorithm ... , Pentamadine, CNIs ... Hypomagnesemia #Magnesium #Low ... #Causes #Differential
Shock - Differential Diagnosis by Classification

Hypovolemic (Intravascular volume depletion)
 - Hemorrhagic 
   • Trauma
Shock - Differential ... Diagnosis by Classification ... exacerbation (any cause ... obstruction to blood flow ... #Table #CriticalCare
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
Hypokalemia - Differential ... #Diagnosis #Low ... #Potassium #Table ... #Classification ... #Causes
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
pneumonia (PJP), MAI, Cryptococcal ... nodules, plaques) Cryptococcus ... (It's usually low ... Lymphadenopathy, CNS ... factor • May cause
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Hypomagnesemia #Differential ... #Diagnosis #Low ... #Magnesium #Table ... #Classification ... #Causes #Workup