59 results
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
Differential Diagnosis Algorithm ... disorders • Celiac disease ... effect following treatment ... following EtOH induced thrombocytopenia ... #Causes #Hematology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
purple, hemorrhagic skin ... Splenomegaly - CTD (SLE ... Associated - SLE ... Differential #Diagnosis #hematology ... #rheumatology #
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Malar rash • SLE ... infection • Lyme disease ... migrans • Lyme disease ... IBD • RA • SLE ... differential #diagnosis #rheumatology
Von Willebrand Disease - Most common inherited bleeding disorder 
Clinical 
 • Easy bruising 
 •
Von Willebrand Disease ... bruising • Skin ... platelet count (mild thrombocytopenia ... factor VIII) Treatment ... #Diagnosis #Hematology
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Causes of Thrombocytopenia ... Differential Diagnosis Algorithm ... Autoimmune • ITP • SLE ... Heart Valve) #Thrombocytopenia ... #Causes #Hematology
Systemic Lupus Erythematosus - Summary
Antinuclear (ANA) - 95% - Initial screening test
Anti-dsDNA - 50%
 • Associated
Associated with skin ... • Specific for SLE ... Treatment: • ... Erythematosus #SLE ... Summary #diagnosis #rheumatology
Clinical Features of Systemic Lupus (SLE)
General: Fever (50%), Depression, Fatigue (75%), Weight loss (50%)
Eye: Sjögrens (15%)
Skin
Systemic Lupus (SLE ... Sjögrens (15%) Skin ... pain (20%) Renal disease ... Leucopenia/lymphopenia, Thrombocytopenia ... symptoms #diagnosis #rheumatology
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
Differential Diagnosis Algorithm ... → Refer to hematology ... Rebound effect from treatment ... Vasculitides, IBD, Celiac disease ... #hematology
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
PT, aPTT(liver disease ... test, ANA (e.g., SLE ... bypass), LFT (liver disease ... or if a primary hematologic ... Causes #Workup #hematology
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
Involving the Skin ... Secondary: CTD: SLE ... Vasculitis Skin ... Vasculitis: • Behcet Disease ... #dermatology #rheumatology