13 results
Giant Cell (Temporal) Arteritis: Pathogenesis and investigations
Risk Factors:
 - Unclear environmental triggers (may be viral, not
Giant Cell (Temporal ... expression - Age: GCA ... enlarged, usually painful ... palpation - Vasculitic ... #Arteritis #Pathophysiology
Unilateral Acute Vision Loss - Differential Diagnosis Algorithm
Painful - Cornea
 • Keratopathy
Painful - No Abnormalities of
Vision Loss - Differential ... • Keratopathy Painful ... Optic Nerve • Temporal ... Acute #VisionLoss #Differential ... Algorithm #Causes #Ophthalmology
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
Vasculitis Involving ... the Skin - Differential ... polyangiitis - EGPA - GPA ... : • Temporal arteritis ... #rheumatology #differential
Giant cell arteritis (GCA)

Giant cell arteritis (GCA) definition: Most common systemic inflammatory vasculitis in older adults
systemic inflammatory vasculitis ... GCA versus Temporal ... very remarkable w/differential ... diagnosis = vasculitis ... required +/- prompt ophthalmology
Differential Diagnosis for Vision Loss
Unilateral, Painful Vision Loss:
 • Corneal abrasion, Acute angle-closure glaucoma, Inflammation-iritis, uveitis,
Differential Diagnosis ... Loss Unilateral, Painful ... sinus thrombosis, Temporal ... #painless #differential ... diagnosis #causes #ophthalmology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential ... and branches • GCA ... and Superficial temporal ... ear disease Differential ... differential #diagnosis
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
Polyangiitis (GPA ... • Pauci-immune vasculitis ... purpura (16%) • Painful ... reticularis Differential ... Diagnosis: Vasculitis
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
three primary pathophysiologic ... ANCA (C-ANCA): GPA ... eGPA, MPA >>> GPA ... Glomerulonephritis #Vasculitis ... #differential #
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... Differential Diagnosis ... Elevated ESR and CRP GCA ... and Superficial temporal ... develop in pts with GCA
Photophobia and Headache - Differential Diagnosis Framework

Why?
• The coexistence of photophobia and headache suggests the potential
and Headache - Differential ... headache • CNS Vasculitis ... Painful cranial ... - Mydriasis • Painful ... #diagnosis #ophthalmology