13 results
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Causes of Thrombocytopenia ... Diagnosis and Workup ... Risks factor for HIV ... #Diagnosis #Causes ... #Workup #hematology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
- Hemolytic anemia ... • HCV, HBV Not ... #Diagnosis #hematology ... #rheumatology # ... #nonpalpable #dermatology
Aplastic Anemia - Overview

Who?
• M = F
• 3 peaks:	1) Childhood	2) 15-25 years	3) >60 years

What?
• Aplastic anemia
- CMV - HCV ... - HIV • Immune ... immunodeficiency virus (HIV ... #oncology #hematology ... #diagnosis #management
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
): - Disseminated ... intravascular coagulation ... microangiopathy: Thrombotic thrombocytopenic ... #differential # ... diagnosis #hematology
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
Disseminated Intravascular ... Treat primary cause ... #diagnosis #causes ... #treatment #management ... #hematology
Venous Thrombosis vs Arterial Thrombosis - Differential Diagnosis Framework

VENOUS THROMBOSIS

 • Acquired Risk Factors:
	- >48 hours
Heparin-induced thrombocytopenia ... - Disseminated ... intravascular coagulation ... and other causes ... pathophysiology #hematology
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
hemostasis: - Thrombocytopenia ... Meningococcemia - Disseminated ... deficiency Work ... Complete blood count coagulation ... #Causes #dermatology
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
hemolytic anemia ... DDX - Other causes ... Epstein-Barr syndrome, HIV ... hypogammaglobulinemia #immunology #hematology ... #diagnosis #management
Myelodysplastic Syndromes (MDS)

What?
Myelodysplastic syndromes are a group of disorders caused by blood cells that are poorly
formed or don’t work ... Workup: • Complete ... blood count with differential ... Myelodysplastic #Syndromes #diagnosis ... #hematology #oncology
Elevated Globulin - Protein Gap (Total Protein - Albumin > 4)

Work-up of an Elevated Globulin Gap:
•
Albumin > 4) Work-up ... infections (acute HIV ... , HBV, EBV, VZV, ... gastric tumors • Hematology ... #diagnosis #hematology