11 results
Extra-articular and Other Conditions Associated with Joint Pain

Eyes
  • Iritis or uveitis - Spondyloarthropathies, Sarcoidosis,
Associated with Joint ... Pain Eyes ... - SLE Neurologic ... Lyme disease, Vasculitis ... #pain #differential
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Associated with Joint ... Pain Rash ... Antiphospholipid-antibody syndrome ... • Vasculitis ... #differential #
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential ... vesicular eruption - Joints ... tract: abdominal pain ... • Cogan Syndrome ... , testes -> pain
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... affects the skin, neurologic ... vesicular eruption • Joints ... Palpable purpura, joint ... involvement, abdominal pain
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
Knee Effusions - Differential ... Fever/Chills/Joint ... pain/Night sweats ... Seronegative Reactive Syndrome ... Ligamentous injuries - Meniscal
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 ... skin injury) • Neurologic ... Behcet disease) Differential ... Nonsurgical abdominal pain
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
surfaces of the joints ... burning sensation or pain ... reticularis Differential ... • Goodpasture syndrome ... • Giant cell arteritis
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
Hematuria - Differential ... Post-infectious GN - Loin pain ... : • Flank pain ... Diagnostic of GN or vasculitis ... #Hematuria #Differential
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
permanent alopecia Differential ... ANCA-associated vasculitis ... Joint pain • Swan ... arthropathy • 90% joints ... • Mesenteric vasculitis
Algorithm - Approach to the differential diagnosis of the patient presenting with overt glomerular proteinuria. CMV
Approach to the differential ... pancreatitis), joints ... (arthritis), central ... lymphadenopathy, pleuritic pain ... #nephrology