68 results
Causes of Anemia by Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Low Mean Corpuscular Volume (<80
- Differential Diagnosis ... Inflammation, Chronic Infection ... #MCV #Classification ... #Differential #Diagnosis ... Algorithm #Causes #Hematology
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
Hemophagocytic Lymphohistiocytosis ... • Autoimmune diseases ... Unknown cause Treatment ... #management #treatment ... #summary #rheumatology
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
- Differential Diagnosis ... hemolysis, deficiency anemia ... Rebound effect from treatment ... Inflammatory Conditions: Rheumatologic ... Vasculitides, IBD, Celiac disease
Hemophagocytic Lymphohistiocytosis (HLH)
Definition: Overwhelming clinical syndrome associated with excessive macrophage activation and cytokine storm due to
Hemophagocytic Lymphohistiocytosis ... age, however the disease ... can mimic common infections ... : • Infection ... #hematology
Differential Diagnosis for Hemolytic Anemia
Intrinsic Causes:
 • Enzyme deficiencies ex. G6PD, pyruvate kinase 
 • Hemoglobinopathies
Differential Diagnosis ... Causes: • Liver disease ... drug induced • Infections ... #causes #classification ... #hematology
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
SLE], AOSD) • Infection ... with leukopenia, anemia ... Treatment: • Corticosteroids ... Activation #Syndrome #Diagnosis ... #Rheumatology
Aplastic Anemia - Illness Script
Signs and symptoms:
 • Recurrent infections from neutropenia
 • Mucosal bleeding from
: • Recurrent infections ... Diagnosis: • Pancytopenia ... Treatment: • Consider ... #diagnosis #management ... #treatment #hematology
Classification of Vasculitis 
Vasculitis of large vessels 
 - Arteritis temporalis (giant-cell arteritis) 
 - Takayasu
Classification of ... malignomas, and infectious ... Vasculitis #Vessels #Diagnosis ... #Rheumatology # ... Diagnosis
Algorithmic Approach to Anemia - Differential Diagnosis Framework by MCV

Microcytic (MCV < 80) "TAILS":
 • Thalassemia
- Differential Diagnosis ... Macroangiopathic, Infections ... Non-megaloblastic: Liver disease ... #Differential #Diagnosis ... #hematology
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
- Differential Diagnosis ... Myelofibrosis Infectious ... disorders • Celiac disease ... effect following treatment ... Iron deficiency anemia