8 results
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
(particularly common ... Differential #Diagnosis #Low ... #Magnesium #Table ... #Classification ... #Causes #Workup
Causes of Secondary Hypertension - Differential Diagnosis and Screening Testing
Common causes: 
 • Renal parenchymal disease
Causes of Secondary ... Screening Testing Common ... causes: • Renal ... causes: • Pheochromocytoma ... Differential #Diagnosis #Causes
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
Common Variable ... infection risk secondary ... DDX - Other causes ... Burns • Protein-losing ... #Variable #Immunodeficiency
Borrelia recurrentis on Peripheral Blood Smear
23M Somali refugee recently arrived w/severe abd pain, confusion and fever
the body louse, causes ... Northeast Africa with cases ... Several cases have ... The table below ... rearranged and variably
Myelodysplastic Syndromes (MDS)

What?
Myelodysplastic syndromes are a group of disorders caused by blood cells that are poorly
age • 22 and 45 cases ... MDS carries a variable ... Most common cytopenia ... DDX: Rule Out Secondary ... Causes • Anemia
Idiopathic CD4 Lymphopenia (ICL) / Lymphocytopenia 

DIAGNOSTIC CRITERIA FOR ICL
 • Persistent CD4 T-cell lymphopenia
 •
underlying primary or secondary ... ASSOCIATIONS W/ LOW ... MTB/MAC • Common ... variable immune ... #Differential #Causes
Giant cell arteritis (GCA)

Giant cell arteritis (GCA) definition: Most common systemic inflammatory vasculitis in older adults
definition: Most common ... particularly those coming ... GCA can present variably ... : On one hand, classic ... identifies 85 to 95% of cases
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tract, and often causes ... Drug Associated (Commonly ... > 50 years VARIABLE-VESSEL ... • Complement (Low ... #rheumatology #classification