27 results
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Diagnosis- Compatible syndrome ... , may also see skin ... splenomegaly Other infections ... Infectious: ... differential #diagnosis #causes
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
parvovirus B19 infection ... parvovirus B19 infection ... Amyloidosis • Eosinophilic ... Antiphospholipid-antibody syndrome ... lesions • Discoid
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
purple, hemorrhagic skin ... lesions that result ... SLE) - Viral infections ... Kasabach-Merritt syndrome ... deficiencies - PNH
Pustular Skin Lesions - Differential Diagnosis Framework

What are pustules?
• Pustules < 5-10 mm + pus
• Material
Pustular Skin Lesions ... SAPHO syndrome ( ... Eosinophilic folliculitis ... Sweet syndrome ... #Lesions #Differential
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
GPA causes disease ... • Goodpasture syndrome ... cell arteritis Infections ... diseases • Fungal infections ... rash #diagnosis #rheumatology
Causes of Pseudocellulitis - Differential Diagnosis Framework for Cellulitis Mimics

Cellulitis: Deep skin and subcutaneous fat infection

Pseudo
Cellulitis: Deep skin ... Angioedema • Sweet syndrome ... Sarcoidosis • Eosinophilic ... • Compartment syndrome ... #dermatology #skin
Sweet Syndrome

Acute febrile neutrophilic dermatosis (Sweets Syndrome) is a skin condition characterized by fever and inflamed
and mucosal lesions ... Causes: - Idiopathic ... , breast CA - Hematologic ... Upper respiratory infection ... gastrointestinal infection
Childhood Immunization Schedule: Why we immunize
 • Diphtheria Toxin -> URT inflammation causes pseudomembrane with hardened
invade URT & via hematologic ... CNS and hematologic ... infection -> Parotid ... that persists as skin ... lesions -> Vesicular
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
decades of life Causes ... Infections 2. ... lesions - Wheals ... neutrophils and eosinophils ... Urticaria #diagnosis #rheumatology
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
to exclude are infections ... progressive) EGPA (Eosinophilic ... Polyangiitis): • Eosinophilia ... tract, and often causes ... , recent viral infection