38 results
Systemic Lupus Erythematosus - Diagnosis
Manifestations:
 - Arthritis 69%
 - Malar rash 40%
 - Fever 36%
 -
Arthritis 69% - Malar ... - Hemolytic anemia ... : - ANA 95-100% ... Diagnosis and Lupus ... #rheumatology
ANA Patterns and Associated Rheumatic Diseases:
 • Homogeneous: Systemic lupus erythematosus (SLE), Mixed connective tissue disease
ANA Patterns and ... #Antinuclear #Antibodies ... #ANA #patterns ... #rheumatology #diagnosis ... #differential
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
Antinuclear Antibodies ... assay (IFA) is the main ... should be interpreted ... #rheumatology #diagnosis ... #differential
Causes of Anemia with elevated Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Normal Blood Smear
 •
Volume (MCV) - Differential ... Diagnosis Algorithm ... B12 - Anti-IF Antibodies ... • Rule out B12 and ... #Causes #Hematology
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Diagnostic Framework ... usually IgG) (e.g. lupus ... • Infections: Malaria ... Extravascular #Causes #differential ... #diagnosis #hematology
Pancytopenia - Differential Diagnosis

Congenital Diseases:
• GATA2 deficiency
• Fanconi’s anemia
• Wiskott-Aldrich syndrome
• Ribosomopathy or telomeropathy

Cancer:
• Leukemia
• Lymphoma

Inflammatory
Diagnosis Congenital ... deficiency • Fanconi’s anemia ... Inflammatory and ... Diseases: • Systemic lupus ... #Diagnosis #Hematology
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Associated with Joint Pain ... B19 infection Malar ... lesions • Discoid lupus ... #skin #rashes #differential ... #diagnosis #rheumatology
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
permanent alopecia Differential ... Diagnosis: • ANCA-associated ... Arthritis: • Joint pain ... Photosensitivity • Malar ... lymphopenia, low PLT • Anemia
Causes of Extravascular and Intravascular Hemolysis - Differential Diagnosis Algorithm
Extravascular - Spleen and RES-mediated hemolysis
 -
Diagnosis Algorithm ... Infections • Malaria ... immune-complex hemolytic anemia ... #Diagnosis #Algorithm ... #Causes #Hematology
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
Post-strep GN, Lupus ... Purpura Anti-GBM antibodies ... Glomerulonephritis #Vasculitis #differential ... #diagnosis #algorithm ... #rheumatology