51 results
Thrombotic Microangiopathy - TTP VS HUS

Big picture points : Often hard to differentiate the two entities,
distinction has HUGE treatment ... and first-line treatment ... thrombocytopenia #Comparison ... Diagnosis #Table #Hematology
Eosinophil Disorders Testing Algorithm
INDICATIONS FOR TESTING:
 • Peripheral blood eosinophilia/hypereosinophilia uncovered incidentally during medical evaluation or
for secondary causes ... eosinophilia (common causes ... glucocorticoid treatment ... symptoms (eg, skin ... Differential #diagnosis #hematology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
purple, hemorrhagic skin ... • Secondary Causes ... Differential #Diagnosis #hematology ... #rheumatology # ... #nonpalpable #dermatology
Symptoms Distinguishing Groups of Cutaneous Drug Reactions
IgE-mediated reactions:
 • Onset minutes to hours into treatment course
to hours into treatment ... Raised off of the skin ... Blistering and/or skin ... Drug #Reactions #dermatology ... #clinical #comparison
Von Willebrand Disease - Most common inherited bleeding disorder 
Clinical 
 • Easy bruising 
 •
bruising • Skin ... factor VIII) Treatment ... Disease #Diagnosis #Hematology
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
Causes of Thrombocytosis ... effect following treatment ... Diagnosis #Algorithm #Causes ... #Hematology
Warm vs Cold Autoimmune Hemolytic Anemia
Warm Autoimmune Hemolytic Anemia:
 • Mechanism: IgG and Complement-mediated
 • Etiology:
Spherocytes • Treatment ... transient hemolysis • Treatment ... Hemolytic #Anemia #hematology ... #diagnosis #comparison
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
Dermatologic Manifestations ... GPA causes disease ... vasculitis #Dermatologic ... Polyangiitis #GPA #dermatology ... rash #diagnosis #rheumatology
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
decades of life Causes ... trigger - Direct skin ... 50% of patients Skin ... Urticaria #diagnosis #rheumatology ... #comparison #table
Fever vs Hyperthermia
Fever:
 • Regulated in the hypothalamic thermoregulatory center
 • "Set point" raised by prostaglandin
production • Treatment ... rapidly fatal • Causes ... Identify underlying cause ... loss from the skin ... #Hyperthermia #comparison