40 results
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
sign of cutaneous ... 50 years • New headache ... , mucositis • Rash ... • Progressive symptoms ... of headache, cognitive
Petechial/Purpuric Rashes- THE ALGORITHMIC APPROACH 

These rashes can be especially challenging and are
associated with devastating differential
with fever or toxicity ... , the differential ... with fever/toxicity ... rash, the diagnosis ... #Purpuric #Rash
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
- Differential ... Diagnosis Algorithm ... Red Flags: • Fever ... Rash: - Purpura ... #Differential #
Approach to Headaches - Differential Diagnosis Algorithm

Red flags (PHANTOMS):
 • Pattern change, progressively worse, papilledema
 •
- Differential ... Diagnosis Algorithm ... papilledema • Horner syndrome ... ) • Systemic symptoms ... , fever, myalgia
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
• Rheumatic fever ... Crohn's disease Palpable ... Antiphospholipid-antibody syndrome ... #skin #rashes #differential ... #diagnosis #rheumatology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... Diagnosis Framework ... Kasabach-Merritt syndrome ... mountain spotted fever ... #Differential #
Erythematous Rashes - THE ALGORITHMIC APPROACH

Characterized by diffuse redness of the skin due to
capillary congestion, erythematous
, the differential ... and toxic shock syndrome ... erythematous rash ... #Erythematous #Rash ... #Differential
Anaplasma Infection - Anaplasma phagocytophilum
Pathophysiology: 
 • Obligate, intracellular bacteria
 • Transmitted via blacklegged tick —
within morulae Signs ... and symptoms: ... after bite • Fever ... , headache, malaise ... shaking chills • Rash
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
• Petechiae, Palpable ... Maculopapular rash ... reticularis Differential ... • Goodpasture syndrome ... #dermatology #rash
Clinical Features of Systemic Lupus (SLE)
General: Fever (50%), Depression, Fatigue (75%), Weight loss (50%)
Eye: Sjögrens (15%)
Skin
(SLE) General: Fever ... , Vasculitis, Purpura ... Demyelinating syndromes ... erythematosus #signs ... #symptoms #diagnosis