12 results
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
Macrophage Activation ... lupus erythematosus ... • Fever is the main ... Syndrome #Diagnosis #Management ... #Hematology #Rheumatology
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
non-activity, may ... - Autoimmune Rheumatologic ... conditions such as ... #Diagnosis #MSK ... #rheumatology #
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
SLE (Systemic Lupus ... Non-autoimmune rheumatologic ... : • Joint pain ... (NPSLE): • May ... Chronic B-cell activation
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
GCA (Giant Cell Arteritis ... tract: Abdominal pain ... and often causes arthritis ... involvement, abdominal pain ... Differential #Diagnosis #Rheumatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
rapidly progressing GN ... inflammation Others: • Lupus ... systemic lupus ... , testes -> pain ... differential #diagnosis #rheumatology
Approach to Joint Pain - Diagnostic Framework

1) Chronicity
2) Inflammatory vs Non-Inflammatory
3) Number of Joints Involved

1) Chronicity:
Approach to Joint Pain ... spondyloarthropathies, lupus ... Lyme), reactive arthritis ... #Joint #Pain #MSK ... #rheumatology #
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Rheumatology Workup ... affected joint • Systemic ... lupus erythematosus ... , and low back pain ... diagnosis #testing #Rheumatology
Sarcoidosis - Diagnosis and Management Summary
Epidemiology
1) High incidence in Scandinavian countries (11-24 cases per 100,000 individuals
Diagnosis and Management ... mediators such as ... Extrapulmonary: ankle arthritis ... skin (16-32%): lupus ... anterior/posterior MSK
Sjogren's Syndrome Overview

Epidemiology:
• F > M: 9:1
• 5-6th Decades (can be any age)

Autoimmune exocrinopathy multisystemic disease
Membranoproliferative GN ... phenomenon (16%) MSK ... Arthralgia and Arthritis ... Sjogrens #Syndrome #Rheumatology ... #Diagnosis #Management
Pseudogout Summary - Calcium Pyrophosphate Deposition Disease (CPPD)

Pathophysiology:
Pyrophosphate produced by chondrocytes likely precipitates with calcium to
onset of swelling, pain ... polyarticular CPPD • Systemic ... with acute neck pain ... Deposition #Disease #Rheumatology ... #diagnosis #management