37 results
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
- Differential ... Diagnosis Algorithm ... Alloimmune • anti-HLA ... Non-lmmune: • HELLP Syndrome ... #Causes #Hematology
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
accumulation of clinical ... Assessment • Clinical ... Drugs, Unknown cause ... Treatment: • ... #summary #rheumatology
Hemophagocytic Lymphohistiocytosis (HLH)
Definition: Overwhelming clinical syndrome associated with excessive macrophage activation and cytokine storm due to
: Overwhelming clinical ... syndrome associated ... Ferritin >500 ng/mL ... • Bicytopenia Treatment ... #hematology
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
lymphohistiocytosis (HLH ... 5000 to 10,000 ng/mL ... Treatment: • Corticosteroids ... #Diagnosis #Management ... #Hematology #Rheumatology
Causes of Thrombocytosis - Differential Diagnosis
Secondary Thrombocytosis (a.k.a Reactive Thrombocytosis):
 • Acute infection
 • Solid organ
- Differential ... Myelodysplastic syndrome ... myeloid leukemia (CML ... #Diagnosis #Causes ... #hematology #secondary
Diagnostic Framework for Anemia (Morphological Approach - MCV)
Low MCV - <80fL - "Microcytic"
 • Iron deficiency
Diagnostic Framework ... Myelodysplastic syndrome ... #differential # ... diagnosis #causes ... #hematology
Aortitis - Differential Diagnosis Framework
Non-Infectious Aortitis:
 • Vasculitides: Giant Cell Arteritis (GCA), Takayasu's arteritis, Cogan's Syndrome,
Aortitis - Differential ... Diagnosis Framework ... arteritis, Cogan's Syndrome ... , Sarcoidosis, HLA-B27 ... #Diagnosis #rheumatology
Blood Disorders - Markers and Differential Diagnosis Algorithm 
Acute
 • Myloid (AML) - CD13, CD33, CD34,
Diagnosis Algorithm ... CD13, CD33, CD34, HLA-DR ... CD23, o CML ... Amy Chung, MD, MSc ... Blood #Disorders #hematology
Causes of Eosinophilia - Differential Diagnosis
Bugs:
 - Fungus (aspergillosis)
 - Viral (HIV)
 - Ectoparasites (scabies, myiasis)
- Differential ... Primary: - CML ... Hypereosinophilic Syndrome ... #Diagnosis #Causes ... #hematology
Causes of Anemia with elevated Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Normal Blood Smear
 •
Causes of Anemia ... Corpuscular Volume (MCV ... ) - Differential ... Myelodysplastic Syndromes ... #Causes #Hematology