25 results
Petechial/Purpuric Rashes- THE ALGORITHMIC APPROACH 

These rashes can be especially challenging and are
associated with devastating differential
Petechial/Purpuric ... in vasculitic diseases ... Nonpalpable purpura ... disseminated gonococcal disease ... #Diagnosis #Dermatology
Causes of Purpura - Differential Diagnosis
Disruption in Vascular Integrity: 
 • Trauma, Infection, Vasculitis, Drug induced
Causes of Purpura ... C), Pigmented purpuric ... Primary hemostasis: Thrombocytopenia ... BrighamChiefs #Purpura ... #nonpalpable #palpable
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... PURPURA: Platelet ... PURPURA: Vasculitis ... Ig A vasculitis/HSP ... palpable #nonpalpable
Causes of Purpura - Differential Diagnosis
Non-PalpabIe → Palpable
 • Thrombocytopenia (HIT, ITP/HUS), Coagulation defects (DIC, warfarin
Causes of Purpura ... - Differential ... Thrombocytopenia ... BrighamChiefs #Purpura ... #nonpalpable #palpable
Henoch Schonlein Leg Rash - Palpable Purpura
Purpura: Low Platelets or Vasculitis?
45 years old, seen in our
Purpura Purpura ... Palpable purpura ... Tip: To differentiate ... Thrombocytopenia ... #HSP
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
purpura (16%) ... purpura • Vesicles ... overlying purpuric ... reticularis Differential ... Henoch-Schönlein purpura
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
infection • Lyme disease ... migrans • Lyme disease ... Palpable purpura ... Henoch Schönlein purpura ... #skin #rashes #differential
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
Involving the Skin - Differential ... Vessel: Petechiae, Palpable ... purpura, Hemorrhagic ... Vasculitis: - Ig A (HSP ... Vasculitis: • Behcet Disease
Causes of Post-Partum Hemorrhage - Differential Diagnosis Algorithm
Blood Loss: >500mL post vaginal delivery OR >1000 mL
Post-Partum Hemorrhage - Differential ... delivery OR >1000 mL ... purpura (ITP) ... purpura (TTP) ... von Willebrand's disease
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Petechial Rash - Differential ... hemostasis: - Thrombocytopenia ... Henoch Schonlein Purpura ... Rash: - Purpura ... Petechiae #Rash #Differential