13 results
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Causes of Thrombocytopenia ... test, ANA (e.g., SLE ... IgA, IgG, IgM (CVID ... or if a primary hematologic ... #Workup #hematology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
: - Thrombocytopenia ... Splenomegaly - CTD (SLE ... Associated - SLE ... Differential #Diagnosis #hematology ... #nonpalpable #dermatology
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
Causes of Thrombocytosis ... Differential Diagnosis Algorithm ... • Rheumatic disorders ... following EtOH induced thrombocytopenia ... #Causes #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
Causes of Bleeding / Bruising - Differential Diagnosis Algorithm
Thrombocytopenia - Quantitative Defect
 • Decreased Production
 •
Causes of Bleeding ... Differential Diagnosis Algorithm ... Thrombocytopenia ... Sequestration Disordered ... #Causes #Hematology
Primary Dermatologic Nail Disorders - Differential Diagnosis Algorithm
Nail Plate - Pitting
 • Psoriasis
 • Alopecia Areata
Nail
Primary Dermatologic ... Nail Disorders ... Telangiectasia • SLE ... NailDisorders #Primary #dermatology ... #causes
Mucous Membrane Disorder - Differential Diagnosis Algorithm
Erosions/Ulcers/Blisters
 - Primary Dermatologic Diseases
     •
Mucous Membrane Disorder ... Differential Diagnosis Algorithm ... • Inflammatory bowel ... MucousMembranes #dermatology ... #causes
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
disorder with hypogammaglobulinemia ... • Infectious diarrhea ... specifically immune thrombocytopenia ... DDX - Other causes ... hypogammaglobulinemia #immunology #hematology
Causes of Anemia with elevated Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Normal Blood Smear
 •
Causes of Anemia ... Differential Diagnosis Algorithm ... • Small Bowel ... Disorder ... #Causes #Hematology
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
Differential Diagnosis Algorithm ... genotypes): SS, SC, SE ... Schistocytes, thrombocytopenia ... Consider RBC membrane disorder ... #workup #hematology