491 results
Myelodysplastic Syndromes (MDS)

What?
Myelodysplastic syndromes are a group of disorders caused by blood cells that are poorly
blood cell count (anemia ... Peripheral Smear ... dysplastic erythroid precursors ... • Aplastic Anemia ... Peripheral blood smear
Megaloblastic Anemia vs Normal Peripheral Smear

#Megaloblastic #Anemia #Peripheral #Smear #Comparison #Clinical #Hypersegmented #Neutrophil
Megaloblastic Anemia ... Normal Peripheral Smear ... Megaloblastic #Anemia ... #Peripheral #Smear
Hemolytic Anemias - Differential Diagnosis Algorithm

Signs of anemia and hemolysis:
 • ↓ Haptoglobin
 • ↑ LDH
Hemolytic Anemias ... Algorithm Signs of anemia ... Abnormal peripheral smear ... Autoimmune Hemolytic Anemias ... #Hemolytic #Anemias
The arrows point to blister cells. These cells are thought to be precursors of helmet cells.
thought to be precursors ... BloodSmear #Blood #Smear
Peripheral Blood Smear Analysis
Hypochromia
Megaloblastic Anemia
Schistocytes: Microangiopathic hemolytic anemia (e.g. DIC, TTP, HUS)
Microspherocytes: Autoimmune hemolytic anemia
Sickled red
Peripheral Blood Smear ... Megaloblastic Anemia ... Microangiopathic hemolytic anemia ... Autoimmune hemolytic anemia ... Peripheral #Blood #Smear
Autoimmune Hemolytic Anemia (AIHA) Pathophysiology - Warm vs Cold AIHA
Warm AIHA:
 - 70%; IgG mediated
 -
Autoimmune Hemolytic Anemia ... or negative - Smear ... C3 positive - Smear ... Autoimmune #Hemolytic #Anemia
Dacrocytes (tear drop cells) 
Other poikilocytes resemble a pear or teardrop. The narrow, tapered end
may be
metaplasia, pernicious anemia ... some hemolytic anemias ... BloodSmear #Blood #Smear
Laboratory Testing in Hemolytic Anemia

Intravascular vs Extravascular Hemolysis
Reticulocytes
Unconjugated bilirubin
LDH
Peripheral smear
Haptoglobin
Urine hemosiderin
Urine hemoglobin
Carboxyhemoglobin

#Hemolytic #Anemia #Laboratory #Testing #workup
Testing in Hemolytic Anemia ... LDH Peripheral smear ... #Hemolytic #Anemia
Elliptocyte - 
Note the shape of these appropriately named erythrocytes.
In addition to hereditary elliptocytosis, elliptocytes can
megaloblastic anemia ... myelophthisic anemia ... sideroblastic anemia ... iron deficiency anemia ... BloodSmear #Blood #Smear
Overall Approach to Anemia - Differential Diagnosis Algorithm

Blood Loss
 • Acute Bleed - Normocytic / Normochromic
Overall Approach to Anemia ... Normochromic RBCs on Smear ... • Anemia of Chronic ... Spherocytes on Smear ... Non-lmmune #Anemia