13 results
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Leg Pain - Differential ... Causes of Leg Pain ... Causes of Leg Pain ... : • Infection: ... entrapment • Infections
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Associated with Joint ... Antiphospholipid-antibody syndrome ... Sarcoidosis #dermatology ... #joint #pain #skin ... #rashes #differential
SAPHO Syndrome Summary

What?
SAPHO syndrome is a rare chronic inflammatory disorder of bone, joint, and skin characterized
lesions + Rheumatic pain ... thickening • Osteitis: pain ... Rule out other causes ... such as infectious ... diagnosis #management #Dermatology
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
GPA causes disease ... surfaces of the joints ... burning sensation or pain ... reticularis Differential ... • Goodpasture syndrome
Extra-articular and Other Conditions Associated with Joint Pain

Eyes
  • Iritis or uveitis - Spondyloarthropathies, Sarcoidosis,
Pain Eyes ... Bacterial or viral infection ... Wilson's disease Pulmonary ... Scleroderma Thickened skin ... #pain #differential
Sweet Syndrome

Acute febrile neutrophilic dermatosis (Sweets Syndrome) is a skin condition characterized by fever and inflamed
inflammation of the joints ... Inflammation and pain ... of the joints ( ... Causes: - Idiopathic ... #diagnosis #dermatology
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... vesicular eruption • Joints ... tract, and often causes ... Palpable purpura, joint ... involvement, abdominal pain
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Vasculitides - Differential ... tract, and often causes ... vesicular eruption - Joints ... to exclude are infections ... , testes -> pain
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
status NTM Cause ... Lady Windermere Syndrome ... : • Syndrome of ... diarrhea, abdominal pain ... #differential #
Leukemias Overview: ALL, CML, AML, APML, CLL

Acute leukemias > 20% blasts in the peripheral blood smear
-> AML: Blast crises ... , fever, joint pain ... develop leukostasis syndrome ... • Tumor lysis syndrome ... CLL -> Invade Skin