13 results
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Rash • Human ... Antiphospholipid-antibody syndrome ... lesions • Discoid lupus ... Sarcoidosis #dermatology ... differential #diagnosis #rheumatology
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
Macrophage Activation ... Syndrome (MAS) ... Petechial or purpuric rash ... #Management #Hematology ... #Rheumatology
Sweet Syndrome

Acute febrile neutrophilic dermatosis (Sweets Syndrome) is a skin condition characterized by fever and inflamed
- Rash: multiple ... Causes: - Idiopathic ... - Allergic contact ... - Lupus - Leukemia ... #diagnosis #dermatology
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
Non-autoimmune rheumatologic ... Joint pain • Swan ... erythematosus (NPSLE): • May ... Chronic B-cell activation ... Erythematosus #Diagnosis #Rheumatology
Algorithm - Approach to the differential diagnosis of the patient presenting with overt glomerular proteinuria. CMV
basement membrane; GN ... pancreatitis), joints (arthritis ... lymphadenopathy, pleuritic pain ... vesicular rash, ... Nephrocalcinosis causes
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
GPA causes disease ... burning sensation or pain ... • Goodpasture syndrome ... • Giant cell arteritis ... #rheumatology
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
tract: Abdominal pain ... , mucositis • Rash ... tract, and often causes ... involvement, abdominal pain ... Differential #Diagnosis #Rheumatology
Approach to Elevated Tryptase - Differential Diagnosis Framework

The DDx of elevated tryptase can be broken down
pass = Primary Causes ... : • Mast cell ... activation syndrome ... Differential #Diagnosis #hematology ... #allergy
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
rapidly progressing GN ... tract, and often causes ... mucositis - Rash ... systemic lupus ... differential #diagnosis #rheumatology
SAPHO Syndrome Summary

What?
SAPHO syndrome is a rare chronic inflammatory disorder of bone, joint, and skin characterized
lesions + Rheumatic pain ... nonerosive inflammatory arthritis ... Rule out other causes ... #Rheumatology # ... diagnosis #management #Dermatology