12 results
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... - Hemolytic anemia ... • Bacterial endocarditis ... #Diagnosis #hematology ... #nonpalpable #dermatology
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Thrombocytopenia - Differential ... Megakaryopoiesis • Aplastic Anemia ... Autoimmune • ITP • SLE ... Vasculitis • Infection ... Algorithm #Causes #Hematology
Causes of Thrombocytopenia - Differential Diagnosis Framework
Decreased Production:
 - Drugs (chemo, yang, sulfa, acetaminophen, NSAIDs, quinine,
Thrombocytopenia - Differential ... infiltration: malignancy, infection ... - Autoimmune: SLE ... valve replacement, endocarditis ... Diagnosis #Framework #hematology
Bandemia Overview

Normal: < 1%
Clinically significant: > 10%

Band neutrophils are slightly less mature than segmented neutrophils and
Neutrophil (Normal) Differential ... overlook severe infections ... likelihood of negative ... #differential # ... neutrophil #WBC #CBC #hematology
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
Hemolytic Anemia ... - Differential ... genotypes): SS, SC, SE ... inclusions - If infection ... Algorithm #workup #hematology
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
• Symptoms of anemia ... • hemolytic anemia ... for anti-C3d and negative ... younger pts) Differential ... #hematology #diagnosis
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
Pain - Arthritis Differential ... • Bacterial endocarditis ... aureus • Gram-negative ... arthritis • SLE ... Symmetrical: • RA • SLE
Capnocytophaga Canimorsus Skin Rash

40 M presents w/ N, V, severe epigastric pain. SHx: smoker, drinks 18
Bandemia, AKI. ... fastidious gram-negative ... to meningitis, endocarditis ... Canimorsus #Skin #Rash #dermatology ... #clinical #photo
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Infectious: • Pre-existing ... • Autoimmune (SLE ... • Coagulase-negative ... Marantic (NTBE) Differential ... Leukocytosis, anemia
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Platelet Disorders - Differential ... procedures - Infection ... test, ANA (e.g., SLE ... changes), high MCV anemia ... Causes #Workup #hematology