14 results
Eosinophil Disorders Testing Algorithm
INDICATIONS FOR TESTING:
 • Peripheral blood eosinophilia/hypereosinophilia uncovered incidentally during medical evaluation or
(common causes ... organ-specific signs ... symptoms (eg, skin ... Disorders #Algorithm #Differential ... #diagnosis #hematology
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Amyloidosis • Eosinophilic ... Hypersensitivity vasculitis ... Sarcoidosis • GPA ... Sarcoidosis #dermatology ... #rashes #differential
Dermatological semiology of Cutaneous Vasculitis 

Clinicopathologic correlations
 • Purpura, papules, pustules, necrosis: involvement of small vessels
Identification of causes ... (5%): PAN > GPA ... #dermpath #dermatology ... #semiology #signs ... pathology #lesions #differential
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
Dermatologic Manifestations ... GPA causes disease ... reticularis Differential ... #Dermatologic ... #dermatology #rash
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential ... • EGPA: - Eosinophilia ... tract, and often causes ... and branches • GCA ... purpura: strong sign
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... purple, hemorrhagic skin ... - GPA - EGPA ... Vasculopathy #Purpura #Differential ... #nonpalpable #dermatology
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... purpura: Strong sign ... progressive) EGPA (Eosinophilic ... Polyangiitis): • Eosinophilia ... tract, and often causes
Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS)
Definition: 
 • Severe adverse drug reaction, characterized by
characterized by extensive skin ... Edema in 70% of cases ... Skin involvement ... Resolution > 15 days Differentials ... DRESS #Syndrome #dermatology
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... Rash - Differential ... RA, Sjogren's, GPA ... cryoglobulins • Skin ... #dermatology #physicalexam
Giant cell arteritis (GCA)

Giant cell arteritis (GCA) definition: Most common systemic inflammatory vasculitis in older adults
systemic sx + signs ... very remarkable w/differential ... required due to skip ... #Temporal #Signs ... Symptoms #Diagnosis #Management