66 results
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Causes of Thrombocytopenia ... • ITP • SLE ... • anti-HLA antibodies ... Non-lmmune: • HELLP Syndrome ... #Hematology
Autoantibodies and their Disease Associations
ANA - Non-specific; common in SLE, autoimmune hepatitis
Anti-CCP, Rheumatoid factor - RA
Anti-dsDNA
, autoimmune hepatitis ... microsomal) - Autoimmune ... Associations #diseases #diagnosis ... #table #rheumatology ... #antibodies
Autoimmune Myositis
Necrotizing myopathy is associated with higher CK levels, greater level of muscle weakness, less systemic
Autoimmune Myositis ... can present with rash ... anti-synthetase syndrome ... Can also see mechanics ... #rheumatology
Causes of Thrombocytosis - Differential Diagnosis
Secondary Thrombocytosis (a.k.a Reactive Thrombocytosis):
 • Acute infection
 • Solid organ
Causes of Thrombocytosis ... disorders (e.g. autoimmune ... Myelodysplastic syndrome ... MF) • Chronic myeloid ... #Causes #hematology
Myositis Specific Antibodies (MSAs)

Dermatomyositis: MDA5, TIF1y, NXP2, Mi-2, SAE
Anti-Synthetase Syndrome: Jo-1, PL7, PL12, EJ, OJ
Immune Mediated
Myositis Specific Antibodies ... TIF1y, NXP2, Mi-2, SAE ... Anti-Synthetase Syndrome ... MSAs #clinical #diagnosis ... #rheumatology #
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Joint Pain Rash ... infection Malar rash ... Antiphospholipid-antibody syndrome ... #differential #diagnosis ... #rheumatology
ANA Patterns and Associated Rheumatic Diseases:
 • Homogeneous: Systemic lupus erythematosus (SLE), Mixed connective tissue disease
erythematosus (SLE ... ), Sjogren's Syndrome ... #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 ... ), Sjogren's Syndrome ... Arthritis, Sjögren Syndrome ... ANA #patterns #rheumatology ... #diagnosis #differential
Causes of Thrombocytopenia - Differential Diagnosis Framework
Decreased Production:
 - Drugs (chemo, yang, sulfa, acetaminophen, NSAIDs, quinine,
Causes of Thrombocytopenia ... : ITP, HITT - Autoimmune ... : SLE, RA, antiphospholipid ... syndrome - Pregnancy ... #Framework #hematology
Autoantibodies in Rheumatology
 • Lupus (SLE): ANA (anti-nuclear antibody), dsDNA (double-stranded DNA), Anti-Smith, Anti-Ro (SSA) and
Autoantibodies in Rheumatology ... • Lupus (SLE): ... others (RNP, aPL antibodies ... Autoantibodies #Rheumatology ... #diagnosis #associations