13 results
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... DIC/TTP/HUS - Hemolytic ... Vasculopathy #Purpura #Differential ... #Diagnosis #hematology ... #rheumatology #
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
Non-bloody: OA, avascular ... Like in this case ... #Joint #Pain #MSK ... #rheumatology # ... approach #workup #differential
Causes of Bone/Joint Pain in Sickle Cell Disease
Vaso-occlusive pain:
 • Mechanism: ischemic pain
 • Can present
Causes of Bone/Joint ... Avascular necrosis ... • Differentiate ... #diagnosis #causes ... #hematology
MCP Synovitis on Ultrasound
Young rheumatology patient. Florid synovitis of the MCP joint with effusion on dynamic
Young rheumatology ... synovitis of the MCP joint ... Synovitis #Metacarpal #MSK ... #Ultrasound #POCUS ... #Clinical #Joint
Gout Tophus on POCUS

Linear transducer about 1cm away from bone/joint, typical of small joint in a
Gout Tophus on POCUS ... away from bone/joint ... tophi #clinical #POCUS ... #ultrasound #msk ... #rheumatology #
Approach to Joint Pain

History:
Is the pain from:
	• Joint
	• Adjacent bursa
	• Tendon
	• Ligament
	• Bone
	• Muscle
	• Referred from
Approach to Joint ... pain from: • Joint ... osteopetrosis, avascular ... #Pain #MSK #rheumatology ... approach #workup #differential
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
Pain - Arthritis Differential ... weeks) Can Be Caused ... #pain #Differential ... #Diagnosis #MSK ... #rheumatology #
Gout (Gouty Arthritis) - MSK Radiology
Imaging Findings:
 • Eccentric soft-tissue densities surrounding the third proximal interphalangeal
Gouty Arthritis) - MSK ... interphalangeal joint ... with joint-space ... Differential diagnosis ... #rheumatology
Paraproteinemias

Entities That Can Feature A Monoclonal Protein/M Component:
• MM
• WM
• MGUS
• MGCS
• MGRS
• Splenic Marginal Zone
Scleromyxedema (CNS+GI+CVS+joints ... • Coombs (-) hemolytic ... (Thrombosis in vascular ... Paraproteinemias #Hematology ... #Monoclonal #Differential
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
pulse deficits vascular ... eruption • Joints ... tract, and often causes ... Palpable purpura, joint ... #Diagnosis #Rheumatology