17 results
Features of a Sickle Cell Crisis 
Sickle-cell disease - an autosomal recessive blood disorder.
Characterized by red
Characterized by red blood cells ... These cells can ... Crises can be precipitated ... sequestration of sickle cells ... #Features #Signs
Myelodysplastic Syndrome (MD) - Diagnosis and Management Summary
myelo (marrow) -dys- (abnormal) -plastic (shape) = funny-shaped cells
= funny-shaped cells ... old, ~10,000 new cases ... cytopenias (usually anemia ... risk-stratification • Risks ... #treatment #hematology
Aplastic Anemia - Overview

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

What?
• Aplastic anemia
and petechiae Causes ... hematopoietic stem cells ... number of CD34+ cells ... number of CD34+ cells ... Number of CD34+ cells
X-Linked Agammaglobulinemia: Pathogenesis and clinical findings
The epidemiology of this disease is 1/340,000 births and roughly double
maturation of B cells ... from precursor cells ... Absence of mature B cells ... CD19+) and plasma cells ... Agammaglobulinemia #XLinked #pathophysiology
Bullous Pemphigoid - Diagnosis and Management Summary
Pathophysiology: Autoantibody-mediated damage to epithelial basement membrane -> separation of
Diagnosis and Management ... Summary Pathophysiology ... dermis Clinical Signs ... - Erosions and crusts ... #dermatology
Hodgkin's Lymphoma Overview

Hodgkin's lymphoma (HL) is an uncommon hematological malignancy arising from mature B cells. It
from mature B cells ... Weight loss • Anemia ... Immune hemolytic anemia ... classification #hematology ... #oncology #management
Leukostasis vs Tumor Lysis Syndrome
Leukostasis:
 • Pathophysiology: Large, immature blasts and high WBC count cause hyperviscosity
high WBC count cause ... WBC >100k, + lab signs ... Lysis of tumor cells ... TLS #diagnosis #management ... #hematology
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
Lymphohistiocytosis (HLH) Pathophysiology ... Activation of CD8 T cells ... Phagocytosis of blood cells ... Drugs, Unknown cause ... Lymphohistiocytosis #diagnosis #management
Leukemias Overview: ALL, CML, AML, APML, CLL

Acute leukemias > 20% blasts in the peripheral blood smear
lymphadenopathy • Blast cells ... Rapidly rising blast cells ... -> AML: Blast crises ... : Granulocytic cells ... organs When Cancer Cells
Amyotrophic Lateral Sclerosis (ALS) Summary
ALS: combination of the clinical examination finding of amyotrophy with the pathologic
lateral sclerosis Pathophysiology ... - Microglial cells ... are the immune cells ... - Causes progressive ... between nerve cells