11 results
Vascular Skin Lesions - Differential Diagnosis Algorithm
 - Petechiae < 0.2 cm diameter
 - Purpura 0.2
Vascular Skin Lesions ... discolorations of skin ... #Vasculitis #SkinRash ... #dermatology #Differential ... Diagnosis #Algorithm #causes
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
CNS Ring-Enhancing ... , may also see skin ... Neuro Behcets Vascular ... differential #diagnosis #causes ... #radiology #neurology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
purple, hemorrhagic skin ... lesions that result ... Etiology: • Vascular ... deficiencies - PNH ... Differential #Diagnosis #hematology
Childhood Immunization Schedule: Why we immunize
 • Diphtheria Toxin -> URT inflammation causes pseudomembrane with hardened
invade URT & via hematologic ... endotoxin induces vascular ... CNS and hematologic ... that persists as skin ... lesions -> Vesicular
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
response to local skin ... injury) • Neurologic ... and diplopia) • Vascular ... test (this is a skin ... signs #symptoms #rheumatology
Paraproteinemias

Entities That Can Feature A Monoclonal Protein/M Component:
• MM
• WM
• MGUS
• MGCS
• MGRS
• Splenic Marginal Zone
Alpha & Mu) Skin ... et diutinum Neurologic ... (Thrombosis in vascular ... Paraproteinemias #Hematology ... Differential #Diagnosis #Oncology
Venous Thrombosis vs Arterial Thrombosis - Differential Diagnosis Framework

VENOUS THROMBOSIS

 • Acquired Risk Factors:
	- >48 hours
Testosterone - Coumadin skin ... atherosclerotic lesions ... coagulation and other causes ... pathophysiology #hematology ... differential #diagnosis #vascular
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... reddish-purple lesions ... Disruptions in vascular ... blood test • Serology ... cryoglobulins • Skin
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
lesions • Mononeuritis ... pulse deficits vascular ... , neurologic, and ... cognitive impairment, neurologic ... tract, and often causes
Rickettsialpox Eschar

40 homeless male from NY admitted with fever, chills, headache, myalgias. Diagnosis?
Rickettsialpox R akari classic
Can have 20-40 lesions ... Pts can recover ... rickettsia) Dx: serology ... clinical #photo #skinrash ... #dermatology