21 results
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Joint Pain Rash ... Malar rash ... Hypersensitivity vasculitis ... Schönlein purpura • PAN ... #skin #rashes #differential
Polyarteritis Nodosa (PAN) - Vasculitis Management Algorithm - ACR/VF 2021 Guidelines
 • Severe Disease → Remission
) - Vasculitis Management ... Algorithm - ACR ... immunosuppressive agent (e.g ... ACR2021 #Guidelines #algorithm ... #rheumatology
Petechiae/Purpura - Diagnostic Algorithm. Pathophysiology: 1) Represent the passage of erythrocytes from the intravascular to extravascular
integrity (trauma, infection ... , vasculitis) or ... #Diagnosis #Dermatology ... #Rash #Petechiae ... #Differential #
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Thrombocytopenia - Differential ... Diagnosis Algorithm ... HUS • DIC • Vasculitis ... • Infection ... #Causes #Hematology
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
- Differential ... Diagnosis Algorithm ... - Vasculitis ... #Differential # ... #Causes #dermatology
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
Platelet Count - Differential ... Diagnosis Algorithm ... Rheumatologic, Vasculitides ... Matthew Ho, MD PhD ... #Diagnosis #Algorithm
Dermatological semiology of Cutaneous Vasculitis 

Clinicopathologic correlations
 • Purpura, papules, pustules, necrosis: involvement of small vessels
(5%): PAN > GPA ... (3%) • Infections ... #dermpath #dermatology ... #semiology #signs ... pathology #lesions #differential
Hemolytic Anemias - Differential Diagnosis Algorithm

Signs of anemia and hemolysis:
 • ↓ Haptoglobin
 • ↑ LDH
Diagnosis Algorithm ... Signs of anemia ... Hypersplenism, Infection ... Matthew Ho, MD PhD ... #hematology
Causes of Localized Lymphadenopathy - Differential Diagnosis Algorithm
Cervical:
 - Anterior
     • Infection
Diagnosis Algorithm ... (e.g. ... Lymphadenopathy #LAD ... #Differential # ... #Causes #Hematology
Petechial/Purpuric Rashes- THE ALGORITHMIC APPROACH 

These rashes can be especially challenging and are
associated with devastating differential
inflammation or infection ... petechial or purpuric rash ... #Diagnosis #Dermatology ... Purpural #Purpuric #Rash ... #Differential