14 results
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... leakage of RBC's secondary ... DIC/TTP/HUS - Hemolytic ... Diagnosis #hematology ... #nonpalpable #dermatology
Algorithm for workup of thrombocytopenia based on observation of the peripheral blood film. 
TTP/HUS indicates thrombotic
thrombocytopenic purpura ... /hemolytic uremic ... syndrome. ... thrombocytopenia, Hematology ... #Diagnosis #Differential
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
) - HELLP syndrome ... thrombocytopenic purpura ... uremic syndrome ... Extravascular #Causes #differential ... #diagnosis #hematology
Causes of Thrombocytosis - Differential Diagnosis
Secondary Thrombocytosis (a.k.a Reactive Thrombocytosis):
 • Acute infection
 • Solid organ
Diagnosis Secondary ... iron deficiency, hemolysis ... Myelodysplastic syndrome ... Diagnosis #Causes #hematology ... #secondary
Petechiae/Purpura - Diagnostic Algorithm. Pathophysiology: 1) Represent the passage of erythrocytes from the intravascular to extravascular
Petechiae/Purpura ... Pathophysiology: ... of primary or secondary ... #Diagnosis #Dermatology ... Palpable #Algorithm #Differential
Venous Thrombosis vs Arterial Thrombosis - Differential Diagnosis Framework

VENOUS THROMBOSIS

 • Acquired Risk Factors:
	- >48 hours
Arterial Thrombosis - Differential ... • Nephrotic Syndrome ... other causes of purpura ... Venous #Arterial #pathophysiology ... #hematology #differential
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Henoch Schönlein purpura ... Antiphospholipid-antibody syndrome ... • Cholesterol emboli ... Sarcoidosis #dermatology ... #skin #rashes #differential
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
Involving the Skin - Differential ... Leukocytoclastic Vasculitis Secondary ... Petechiae, Palpable purpura ... Disease • Cogan syndrome ... Vasculitis #skin #dermatology
Red Blood Cell (RBC) Morphology Atlas
 • Microcytic - Iron-deficiency anemia, Thalassemia, Sideroblastic anemia, Lead poisoning
Myelodysplastic syndrome ... deficiency, Pulmonary emboli ... uremic syndrome ... key #diagnosis #differential ... #hematology
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Petechial Rash - Differential ... in primary or secondary ... Henoch Schonlein Purpura ... - Cholesterol embolism ... Algorithm #Causes #dermatology