9 results
Myositis and Myopathies
Polymyositis 
 • Progressive, symmetric muscle weakness 
 • Elevated CK, +Anti-Jo, +Anti-Mi2
Dermatomyositis
Rheumatica • Pain ... Detectable HIV viral ... Diffuse muscle pain ... Myopathies #myopathy #differential ... diagnosis #comparison #rheumatology
Top 10 situations when to think about lupus
1) Inflammatory joint pain (especially in the wrists and
Inflammatory joint pain ... and fingers, or pain ... the face (many differential ... ; sometimes « viral ... erythematosus #rheumatology
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
- Arthritis Differential ... or more joints Viral ... #Differential # ... Diagnosis #MSK # ... rheumatology #Monoarticular
Acute Fatty Liver of Pregnancy (AFLP)
Pathophysiology:
 • Defect in fetal free fatty acid metabolism products →
vomiting, abdominal pain ... Antithrombin Ill • Ultrasound ... infiltration) Differential ... Diagnosis: Viral ... hepatology #obstetrics #obgyn
Approach to Joint Pain

History:
Is the pain from:
	• Joint
	• Adjacent bursa
	• Tendon
	• Ligament
	• Bone
	• Muscle
	• Referred from
Approach to Joint Pain ... History: Is the pain ... bacterial, fungal, or viral ... #MSK #rheumatology ... approach #workup #differential
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
permanent alopecia Differential ... Non-autoimmune rheumatologic ... Arthritis: • Joint pain ... Vasculitis: • Distal ... Erythematosus #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 ... #Joint #Pain #MSK ... #rheumatology # ... approach #workup #differential
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Petechial Rash - Differential ... lesions • Severe pain ... Autoimmune Vasculitis (lupus ... Microscopic) - Viral ... • Abdominal ultrasound
Plantar fasciitis - MSK Radiology
Imaging Findings:
 • Thickening of the plantar fascia central band (measuring 9mm)
Plantar fasciitis - MSK ... • Plain film: ... • Ultrasound: ... Differential diagnosis ... and usually more distal