17 results
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Pain Rash ... lesions • Discoid lupus ... Sarcoidosis #dermatology ... #joint #pain #skin ... differential #diagnosis #rheumatology
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
Pain - Diagnostic ... spondyloarthropathies, lupus ... Lyme), reactive arthritis ... #Joint #Pain #MSK ... #rheumatology #
Myositis and Myopathies
Polymyositis 
 • Progressive, symmetric muscle weakness 
 • Elevated CK, +Anti-Jo, +Anti-Mi2
Dermatomyositis
Rheumatica • Pain ... with temporal arteritis ... Diffuse muscle pain ... uncommon 5-15% of lupus ... diagnosis #comparison #rheumatology
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
Pain - Arthritis ... - Autoimmune Rheumatologic ... • Hepatitis B virus ... Joint #pain #Differential ... Diagnosis #MSK #rheumatology
Clinical Features of Systemic Lupus (SLE)
General: Fever (50%), Depression, Fatigue (75%), Weight loss (50%)
Eye: Sjögrens (15%)
Skin
Features of Systemic Lupus ... of hip (rare), Arthritis ... in small joints ... lesions Abdominal pain ... symptoms #diagnosis #rheumatology
Causes of Bone/Joint Pain in Sickle Cell Disease
Vaso-occlusive pain:
 • Mechanism: ischemic pain
 • Can present
Causes of Bone/Joint ... Pain in Sickle ... Osteomyelitis / Septic Arthritis ... BrighamChiefs #Bone #Joint ... diagnosis #causes #hematology
Causes of Isolated Neutropenia - Differential Diagnosis Algorithm
Congenital
Medications
 • Anticonvulsants
 • Antibiotics
 • Antithyroid
 • Antihypertensive
• Epstein-Barr Virus ... Destruction • Systemic Lupus ... • Rheumatoid Arthritis ... Algorithm #Causes #Hematology
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
Macrophage Activation ... • Fever is the main ... SJIA], systemic lupus ... Diagnosis #Management #Hematology ... #Rheumatology
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
Non-autoimmune rheumatologic ... : • Joint pain ... arthropathy • 90% joints ... Chronic B-cell activation ... Erythematosus #Diagnosis #Rheumatology
Paraproteinemias

Entities That Can Feature A Monoclonal Protein/M Component:
• MM
• WM
• MGUS
• MGCS
• MGRS
• Splenic Marginal Zone
Immunotactoid GN ... -C3 GN • Cast ... Scleromyxedema (CNS+GI+CVS+joints ... to cold IgG • Lupus ... Paraproteinemias #Hematology