2101 results
hematopoiesis - leukocyte maturation tree

- Amy Chung, MD, MSc @AmyChung 

#hematopoiesis #leukocytes #maturation #tree #pathophysiology #Hematology
maturation #tree #pathophysiology ... #Hematology #Progenitor ... #Cells #WBC #pathology
Leukostasis vs Tumor Lysis Syndrome
Leukostasis:
 • Pathophysiology: Large, immature blasts and high WBC count cause hyperviscosity
Leukostasis: • Pathophysiology ... blasts and high WBC ... • Lab values: WBC ... Lysis Syndrome: • Pathophysiology ... diagnosis #management #hematology
Bandemia Overview

Normal: < 1%
Clinically significant: > 10%

Band neutrophils are slightly less mature than segmented neutrophils and
Even with normal WBC ... relative to both WBC ... 21% had normal WBC ... #CBC #hematology ... #pathophysiology
Differentiation Syndrome in APML
Epidemiology:
 • Incidence: common in APL (2-48% depending on the study)
 • Triggers:
ATRA treatment Pathophysiology ... if high risk if WBC ... QD until normal WBC ... diagnosis #management #hematology
Pathophysiology of Hemolytic Anemia
 - Defects in RBC internal contents (thalassemia, hemoglobinopathies, and metabolic defects)
 -
Pathophysiology ... - Defects in RBC ... - Defects in RBC ... environment #Pathophysiology ... Hemolytic #Anemia #hematology
Approach to Leukocytosis - Differential Diagnosis Algorithm

Features of hematologic malignancy:
 • Symptoms: B-symptoms, bruising/bleeding, fatigue/weakness, immunosuppression
Features of hematologic ... platelets, persistent WBC ... Diagnosis #Algorithm #hematology ... #WBC #Leukemoid
Cholestatic Liver Disease: Primary Biliary Cirrhosis vs Primary Sclerosing Cholangitis

#pathophysiology #pbc #psc #hepatology #comparison
Cholangitis #pathophysiology ... #pbc #psc #hepatology
Urine Microscopy and Casts - Image Atlas Key

- Squamous Epithelial Casts
- Transitional Epithelial Cells
- Renal Tubular
Hyaline Cast - WBCs ... Granular Casts - WBC ... Cast - RBC Cast
Blood Product Components, Contents, Volume and Shelf Life

Whole blood (autologous or directed donations) - RBC and
WBC and platelets ... Hct of 70-80% - RBC ... X 1010); some WBC ... X 1011); some WBC ... Contents #Volume #Hematology
Polycythemia (Erythrocytosis) - Pathophysiology

#Polycythemia #Erythrocytosis #Pathophysiology #hematology #algorithm #differential #diagnosis
Erythrocytosis) - Pathophysiology ... Erythrocytosis #Pathophysiology ... #hematology #algorithm