31 results
Petechial/Purpuric Rashes- THE ALGORITHMIC APPROACH 

These rashes can be especially challenging and are
associated with devastating differential
in vasculitic diseases ... , the differential ... disseminated gonococcal disease ... rash, the diagnosis ... #Purpuric #Rash
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Palpable purpura ... Antiphospholipid-antibody syndrome ... lesions • Discoid lupus ... #skin #rashes #differential ... #diagnosis #rheumatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
mucositis - Rash ... such as systemic lupus ... Presentation - Systemic Symptoms ... scleritis • Palpable ... differential #diagnosis
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
- Differential ... Diagnosis Algorithm ... lesions • Severe pain ... Rash: - Purpura ... Vasculitis (lupus
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... Diagnosis Framework ... Kasabach-Merritt syndrome ... PURPURA: Vasculitis ... #Differential #
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
Maculopapular rash ... burning sensation or pain ... reticularis Differential ... Diagnosis: Vasculitis ... • Goodpasture syndrome
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... Differential Diagnosis ... , mucositis • Rash ... ) • Palpable purpura ... #Differential #Diagnosis
Clinical Features of Systemic Lupus (SLE)
General: Fever (50%), Depression, Fatigue (75%), Weight loss (50%)
Eye: Sjögrens (15%)
Skin
Photosensitivity, Butterfly rash ... , Vasculitis, Purpura ... Demyelinating syndromes ... lesions Abdominal pain ... (20%) Renal disease
BEE Syndromes - Immune-mediated conditions affecting the brain, eye, and ear

Visual or auditory symptoms in conjunction
conjunction with symptoms ... • Systemic lupus ... ANCA-associated vasculitides ... #inflammatory #differential ... #diagnosis
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
Diagnosis Framework ... Vessel: Petechiae, Palpable ... purpura, Hemorrhagic ... : • Behcet Disease ... • Cogan syndrome