630 results
Approach to Leukocytosis - Differential Diagnosis Algorithm

Features of hematologic malignancy:
 • Symptoms: B-symptoms, bruising/bleeding, fatigue/weakness, immunosuppression
hepatomegaly • Labs: anemia ... platelets, persistent WBC ... Algorithm #hematology #WBC
Aplastic Anemia - Overview

Who?
• M = F
• 3 peaks:	1) Childhood	2) 15-25 years	3) >60 years

What?
• Aplastic anemia
Aplastic Anemia ... • Aplastic anemia ... Immune Aplastic Anemia ... Pancytopenia: • ↓ RBC ... • ↓ WBC • ↓
Blood Disorders - Markers and Differential Diagnosis Algorithm 
Acute
 • Myloid (AML) - CD13, CD33, CD34,
Pelger-Huet, Macrocytic anemia ... bcr-able (+) ↑ WBC
Evaluation of suspected incomplete Kawasaki Disease

1. AHA consensus recommendations
2. Infants ≤6 months old on day ≥7
Albumin ≤3.0 g/dL, anemia ... ≥450,000/mm3, WBC ... and urine ≥10 WBC
TTP - Laboratory Evaluation for Thrombotic Thrombocytopenic Purpura

Activity of von Willebrand factor-cleaving protease activity - A
result in severe anemia ... immune hemolytic anemia ... from ischemia WBC
Toxic Megacolon 
Inflammatory bowel disease or Infectious colitis characterized by total or segmental nonobstructive colonic dilatation
• HR > 120 • WBC ... > 10.5 • Anemia
Causes of Anemia with Normal Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Decreased WBCs
 - Decreased/NormaI
Causes of Anemia ... Algorithm Decreased WBCs ... Normal/lncreased WBCs ... Microangiopathic Hemolytic Anemias ... #Normocytic #Anemia
Hemolytic Anemias - Differential Diagnosis Algorithm

Signs of anemia and hemolysis:
 • ↓ Haptoglobin
 • ↑ LDH
Hemolytic Anemias ... Algorithm Signs of anemia ... • Extrinsic RBC ... • Intrinsic RBC ... #Hemolytic #Anemias
Red Blood Cell (RBC) Morphology
Microcytic RBC: Pyridoxine deficiency, Thalassemia, Iron deficiency anemia, Chronic disease anemia (sometimes),
Iron deficiency anemia ... Chronic disease anemia ... Sideroblastic anemia ... Microangiopathic Hemolytic Anemia ... autoimmune hemolytic anemia
Urine Microscopy and Casts - Image Atlas Key

- Squamous Epithelial Casts
- Transitional Epithelial Cells
- Renal Tubular
Hyaline Cast - WBCs ... Granular Casts - WBC ... Cast - RBC Cast