61 results
Systemic Sclerosis (Scleroderma)
Multi-system autoimmune disease characterized by vasculopathy and progressive fibrosis of skin and internal organs
3
Systemic Sclerosis ... Scleroderma) Multi-system ... LcSSc) - distal skin ... Scleroderma #SSc #rheumatology ... symptoms #testing #workup
Algorithm for Investigation of Abnormal Coagulation Tests
- Prolonged PT
- Prolonged aPTT and Prolonged PT
- Prolonged aPTT

Dr.
Abnormal Coagulation Tests ... APTT #Laboratory #Hematology ... #Diagnosis #Workup
Systemic Sclerosis Associated Autoantibodies
Anti-topoisomerase I (anti-Sc170): Diffuse skin disease, Pulmonary fibrosis
Anti-centromere: Limited skin disease (~93-95%), Pulmonary
Systemic Sclerosis ... anti-Sc170): Diffuse skin ... Rapid progressive skin ... BCM_InternalMed #Systemic ... Autoantibodies #diagnosis #rheumatology
Systemic Lupus Erythematosus - Summary
Antinuclear (ANA) - 95% - Initial screening test
Anti-dsDNA - 50%
 • Associated
Systemic Lupus Erythematosus ... Initial screening test ... Associated with skin ... • MCTD (SLE/systemic ... Summary #diagnosis #rheumatology
Approach to the Hypercoagulable State
Arterial thromboembolism
→ Cardiac rhythm monitoring, Echocardiogram, Vascular imaging
→ Test for APS, particularly
Vascular imaging → Test ... - No other workup ... Hypercoagulable #Workup ... #hematology #diagnosis ... #algorithm #hematology
Pruritus - Generalized Differential Diagnosis Algorithm - Systemic and Primary Causes
== Primary Skin Lesions ==
Macules /
Causes == Primary Skin ... • Xerosis (dry skin ... Lesion / Systemic ... Liver Function Tests ... #generalized #dermatology
Hemolysis - Diagnostic Algorithm and Causes

Increased red cell production: 
 • Increased Reticulocytosis/polychromasia 
 • Erythroid
Differential #Causes #Workup ... #Hematology #Diagnosis ... GrepMed Recommended Text
Clinical Features of Systemic Lupus (SLE)
General: Fever (50%), Depression, Fatigue (75%), Weight loss (50%)
Eye: Sjögrens (15%)
Skin
Clinical Features of Systemic ... Sjögrens (15%) Skin ... joints Nervous system ... #Lupus #SLE #systemic ... symptoms #diagnosis #rheumatology
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
trigger - Direct skin ... 50% of patients Skin ... - Ice cube test ... , TempTest test ... Urticaria #diagnosis #rheumatology
Eosinophil Disorders Testing Algorithm
INDICATIONS FOR TESTING:
 • Peripheral blood eosinophilia/hypereosinophilia uncovered incidentally during medical evaluation or
evaluation or workup ... 1,500 cells/µL Workup ... symptoms (eg, skin ... Differential #diagnosis #hematology