11 results
Petechial/Purpuric Rashes- THE ALGORITHMIC APPROACH 

These rashes can be especially challenging and are
associated with devastating differential
Nonpalpable purpura ... presents in thrombocytopenic ... rash, the diagnosis ... #Diagnosis #Dermatology ... #Purpuric #Rash
Algorithm for workup of thrombocytopenia based on observation of the peripheral blood film. 
TTP/HUS indicates thrombotic
Algorithm for workup ... of thrombocytopenia ... purpura/hemolytic ... , Hematology 2012 ... #Evaluation
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... inflammation • Thrombocytopenia ... Primary Causes: - Thrombocytopenia ... Diagnosis #hematology ... #dermatology
Thrombotic Microangiopathy - TTP VS HUS

Big picture points : Often hard to differentiate the two entities,
Microangiopathy #thrombocytopenic ... #purpura #TTP # ... HemolyticUremicSyndrome #HUS #thrombocytopenia ... #Comparison #Diagnosis ... #Table #Hematology
Causes of Purpura - Differential Diagnosis
Non-PalpabIe → Palpable
 • Thrombocytopenia (HIT, ITP/HUS), Coagulation defects (DIC, warfarin
Causes of Purpura ... → Palpable • Thrombocytopenia ... Coagulation defects ... BrighamChiefs #Purpura ... #nonpalpable #palpable
Thrombotic Microangiopathies - Primary Thrombotic Microangiopathy (TMA) - Differential Diagnosis Table

 • Thrombotic Thrombocytopenic Purpura (TTP)
Diagnosis Table ... • Thrombotic Thrombocytopenic ... Purpura (TTP) ... Metabolism-mediated TMA - Coagulation-mediated ... Microangiopathy #TMA #hematology
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
hemostasis: - Thrombocytopenia ... Henoch Schonlein Purpura ... : - Purpura fulminans ... deficiency Work ... #Causes #dermatology
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
transfusion • Thrombocytopenia ... Petechiae • Purpura ... Hemorrhagic bullae • Purpura ... coagulopathy - Thrombocytopenia ... treatment #management #hematology
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
intravascular coagulation ... microangiopathy: Thrombotic thrombocytopenic ... purpura (TTP), ... Extravascular #Causes #differential ... #diagnosis #hematology
Venous Thrombosis vs Arterial Thrombosis - Differential Diagnosis Framework

VENOUS THROMBOSIS

 • Acquired Risk Factors:
	- >48 hours
Hyperviscosity, TTP ... thrombocytopenia ... intravascular coagulation ... other causes of purpura ... pathophysiology #hematology