13 results
Autoimmune Hemolytic Anemia (AIHA) - Differential Diagnosis Table

Warm AIHA (48-70%)
Cold AHA (16-32%)
 • Donath-Landsteiner HA (paroxysmal
(AIHA) - Differential ... Diagnosis Table ... hemoglobinuria) • Cold Agglutinin ... Disease Mixed-type ... #hematology
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
Hemolytic Anemia ... ): SS, SC, SE, Sβ ... Agglutination - Cold agglutinins ... bartonella (oroya fever ... Algorithm #workup #hematology
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
• Symptoms of anemia ... • hemolytic anemia ... younger pts) Differential ... Symptoms: High fevers ... #anemia #hematology
Fever and Rash - Differential Diagnosis Framework
 • Viral: Measles, Infectious Mono (EBV, CMV), Acute HIV,
Fever and Rash - ... Differential Diagnosis ... gonorrhea, Rickettsial diseases ... Noninfectious: SJS ... #Diagnosis #dermatology
Red Blood Cell (RBC) Morphology
Microcytic RBC: Pyridoxine deficiency, Thalassemia, Iron deficiency anemia, Chronic disease anemia (sometimes),
Iron deficiency anemia ... anemia (sometimes ... RBC: Hemoglobin SS ... RBC #Morphology #differential ... #diagnosis #hematology
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Microangiopathic hemolytic anemia ... . primary cold agglutin ... Extravascular #Causes #differential ... #diagnosis #hematology ... #anemia
Erythematous Rashes - THE ALGORITHMIC APPROACH

Characterized by diffuse redness of the skin due to
capillary congestion, erythematous
skin syndrome (SSS ... Nikolsky sign, the differential ... includes Kawasaki disease ... #Diagnosis #Dermatology ... #Differential
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... - Hemolytic anemia ... mountain spotted fever ... #Diagnosis #hematology ... #nonpalpable #dermatology
Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS)
Definition: 
 • Severe adverse drug reaction, characterized by
Fever >38.5 2. ... Resolution > 15 days Differentials ... drug reaction • SJS ... withdrawal • Mild disease ... DRESS #Syndrome #dermatology
Maculopapular Rashes - THE ALGORITHMIC APPROACH 

The term maculopapule is a portmanteau, a combination
of macule and
macule and papule (Table ... assessed for Lyme disease ... have a broader differential ... pathognomonic for SJS ... #Diagnosis #Dermatology