Ravi Singh K @rav7ks
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Academic Hospitalist and Program Director @SinaiBmoreIMRes, Medicine clerkship director GW School of Medicine and Health Sciences RMC at Sinai, Clinical reasoning,Simulation and POCUS enthusiast - https://twitter.com/rav7ks
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Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
Cold Agglutinin Disease ... - Idiopathic monoclonal ... malignancy (CLL) - Monoclonal ... Such As: • IgM monoclonal ... hemolytic #anemia #hematology
Monoclonal Gammopathy of Undetermined Significance (MGUS) - Summary Framework

Hematologic disorder characterized by the presence of either
Monoclonal Gammopathy ... abnormal intact monoclonal ... : • Serum IgM monoclonal ... MGUS: • Serum monoclonal ... #Significance #hematology
Paraproteinemias

Entities That Can Feature A Monoclonal Protein/M Component:
• MM
• WM
• MGUS
• MGCS
• MGRS
• Splenic Marginal Zone
Can Feature A Monoclonal ... • Heavy Chain disease ... Amyloidosis and monoclonal ... Sneddon-Wilkinson disease ... Paraproteinemias #Hematology
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
Dermatologic Manifestations ... presentation of the disease ... GPA causes disease ... vasculitis #Dermatologic ... Polyangiitis #GPA #dermatology
Causes of Arterial and Venous Thrombosis - Differential Diagnosis Framework

STRUCTURAL:
 - PFO: paradoxical emboli
 - Popliteal
INFLAMMATORY DISEASE ... : - Behcet disease ... - Buerger's disease ... HEMATOLOGIC DISEASE ... Diagnosis #clots #hematology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
- Bone marrow disease ... deficiency • Liver disease ... Von Willebrand disease ... Dermatosis: Schamberg Disease ... #nonpalpable #dermatology
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
Syndrome Systemic disease ... Inflammatory eye disease ... • Neurologic Disease ... VTE) • Cardiac Disease ... : monoclonal TNF-aIpha
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
infection • Lyme disease ... migrans • Lyme disease ... Sarcoidosis • Crohn's disease ... Sarcoidosis #dermatology
Hodgkin's Lymphoma vs Non-Hodgkin's Lymphoma - Comparison

Hodgkin's Lymphoma:
 • Epidemiology: young adults 20-30, older 50-70
 •
infection, Autoimmune diseases ... - Autoimmune diseases ... thyroiditis, rheumatic disease ... - Extranodal disease ... #differential #hematology
Hemolysis - Differential Diagnosis Framework

1) Environment
  - Fragmentation
  - MAHA: TTP, HUS, DIC, HELLP
, Drugs, Liver Disease ... Electrolytes: Wilson's disease ... Differential #Diagnosis #hematology