18 results
Giant Cell (Temporal) Arteritis: Pathogenesis and investigations
Risk Factors:
 - Unclear environmental triggers (may be viral, not
yrs old; F>M Signs ... Anemia - Giant cells ... Pathophysiology #Diagnosis ... #Signs #Symptoms ... #Vasculitis
Tinea Capitis in a Newborn- A 3-week-old male newborn was brought to the pediatrician with three
Tinea Capitis in ... ringworm, was diagnosed ... #clinical #photo ... #NEJM #tinea #capitis ... #ringworm #derm
IgA Vasculitis – Henoch Scholein Purpura: Pathogenesis and Clinical Findings

 - Infectious Agents - 50% have
IgA Vasculitis – ... various inflammatory cells ... histopathologic term ... Pathophysiology #Diagnosis ... #Signs #Symptoms
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Diagnosis Framework ... Differential Diagnosis ... purpura: Strong sign ... Multinucleated giant cells ... pulmonary infiltrates/cavities
Acute Rheumatic Fever: Pathogenesis and Clinical Findings

Delayed autoimmune reaction
-> Molecular mimicry
-> GAS antigen cross-reacts with host
->
B and CD-4+ T cells ... Prolonged PR Interval, Carditis ... pathophysiology #diagnosis ... #signs #symptoms
Lyme Disease - Diagnosis and Management Summary

Lyme Disease Epidemiology:
- Spirochete
- Reservoir: small mammals & birds
- Transmitted
Lyme Disease - Diagnosis ... Neurological - Carditis ... Meningo-encephalitis - Bell ... , numbness • Carditis ... Iridocyclitis - Retinal vasculitis
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
, small-vessel vasculitis ... panuveitis, retinal vasculitis ... ) Differential Diagnosis ... disease, ulcerative colitis ... #management #signs
Polyarteritis Nodosa (PAN): Pathogenesis and Clinical Findings

Medical Comorbidities Malignancies (most commonly hairy-cell leukemia)
Immunogenetic Predisposition: patient is
vascular endothelial cells ... Pathophysiology #Diagnosis ... #Signs #Symptoms ... #Vasculitis
Pyoderma Gangrenosum in Ulcerative Colitis- ...left chest (Panel A) and leg (Panel B). The physical examination
leukocytoclastic vasculitis ... A diagnosis of pyoderma ... #clinical #photo ... #NEJM #pyoderma ... #derm
IgG4-Related Disease
Clinical history:  Man, 60 years, multiorgan involvement, unique or multiple inflammatory pseudotumor
4 phenotypes:
 •
PET-CT Imaging (→ Diagnostic ... No necrosis, No vasculitis ... increased IgG4+ cells ... supporting long-term ... Related #Disease #diagnosis