11 results
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Joint Pain Rash ... parvovirus B19 infection ... Malar rash ... lesions • Discoid lupus ... #skin #rashes #differential
Petechiae/Purpura - Diagnostic Algorithm. Pathophysiology: 1) Represent the passage of erythrocytes from the intravascular to extravascular
integrity (trauma, infection ... , vasculitis) or ... . 2) When cutaneous ... #Rash #Petechiae ... Palpable #Algorithm #Differential
Seronegative Inflammatory Arthritis - Differential Diagnosis
 • Seronegative Rheumatoid Arthritis 
 • Infectious Arthritis: Viral, Bacterial,
Arthritis • Infectious ... Disease: Systemic Lupus ... Erythematous, Systemic Vasculitis ... Undifferentiated UCSD ... #Diagnosis #rheumatology
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
- Differential ... - Trauma - Infection ... - Vasculitis ... (lupus, RA, Sjogren's ... #Differential #
Systemic Lupus Erythematosus - Diagnosis
Manifestations:
 - Arthritis 69%
 - Malar rash 40%
 - Fever 36%
 -
69% - Malar rash ... (aPL) 30-45% Differential ... , Cutaneous mimickers ... Other auto-immune, Infectious ... #rheumatology
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
permanent alopecia Differential ... fibromyalgia) • Infections ... Malignancy (e.g. hematologic ... vein thrombosis Hematologic ... Vasculitis: •
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
mucositis - Rash ... such as systemic lupus ... to exclude are infections ... strong sign of cutaneous ... #rheumatology #
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... Differential Diagnosis ... to exclude are infections ... , mucositis • Rash ... Diagnosis #Rheumatology
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
(cutaneous or systemic ... Rash is usually ... of necrotizing vasculitis ... comparison #table #differential ... #diagnosis #dermatology
Sweet Syndrome

Acute febrile neutrophilic dermatosis (Sweets Syndrome) is a skin condition characterized by fever and inflamed
- Rash: multiple ... Most common extra cutaneous ... , breast CA - Hematologic ... Leukocytoclastic vasculitis ... ’s syndrome - Lupus