36 results
Seronegative Inflammatory Arthritis - Differential Diagnosis
 • Seronegative Rheumatoid Arthritis 
 • Infectious Arthritis: Viral, Bacterial,
- Differential Diagnosis ... Systemic Rheumatic Disease ... : Systemic Lupus ... Erythematous, Systemic Vasculitis ... #Diagnosis #rheumatology
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Diagnostic Framework ... anemia): ... usually IgG) (e.g. lupus ... #differential #diagnosis ... #hematology #anemia
Clinical Features of Systemic Lupus (SLE)
General: Fever (50%), Depression, Fatigue (75%), Weight loss (50%)
Eye: Sjögrens (15%)
Skin
Butterfly rash, Vasculitis ... of hip (rare), Arthritis ... ) Blood (75%): Anemia ... erythematosus #signs ... #symptoms #diagnosis
Classification of Vasculitis 
Vasculitis of large vessels 
 - Arteritis temporalis (giant-cell arteritis) 
 - Takayasu
- Takayasu arteritis ... - systemic lupus ... #Vessels #Diagnosis ... #Rheumatology # ... Diagnosis
Aortitis - Differential Diagnosis Framework
Non-Infectious Aortitis:
 • Vasculitides: Giant Cell Arteritis (GCA), Takayasu's arteritis, Cogan's Syndrome,
- Differential Diagnosis ... ANCA associated vasculitis ... (RA), Systemic lupus ... #Differential #Diagnosis ... #rheumatology
Common RBC Inclusions and Associations
 • Howell Jolly Bodies: Hyposplenism, Asplenism, Severe hemolytic anemia
 • Heinz
, Hemolytic anemia ... : Hemoglobin H disease ... , Sickle cell, MDS ... Inclusions #Bodies #diagnosis ... #hematology
Systemic Lupus Erythematosus - Diagnosis
Manifestations:
 - Arthritis 69%
 - Malar rash 40%
 - Fever 36%
 -
: - Arthritis ... Lymphadenopathies 7% - Hemolytic ... anemia 4% - Myositis ... autoantibodies #signs ... #differential #rheumatology
Red Blood Cell (RBC) Morphology
Microcytic RBC: Pyridoxine deficiency, Thalassemia, Iron deficiency anemia, Chronic disease anemia (sometimes),
, MDS, Chemotherapy ... Microangiopathic Hemolytic ... Cold autoimmune hemolytic ... #differential #diagnosis ... #hematology #microscopy
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
Hemolytic Anemia ... - Differential Diagnosis ... cardiac valve, vasculitis ... #Anemia #Differential ... #workup #hematology
Algorithmic Approach to Anemia - Differential Diagnosis Framework by MCV

Microcytic (MCV < 80) "TAILS":
 • Thalassemia
- Differential Diagnosis ... , CKD • Hemolytic ... Non-megaloblastic: Liver disease ... Reticulocytosis, MDS ... #hematology