24 results
Adult-Onset Still's Disease
Clinical triad: Fever, Arthralgia/arthritis, Skin rash ± odynophagia
+ Biological inflammation: Increased neutrophils, Hyperferritinemia, decreased
Fever, Arthralgia/arthritis ... , Skin rash ± odynophagia ... fraction < 20% Differential ... CK, normal biopsy ... management #treatment #rheumatology
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
Causes of Knee Effusions ... - Differential ... #differential # ... diagnosis #msk # ... physicalexam
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... Rash - Differential ... #Differential # ... Diagnosis #Algorithm #Causes ... #dermatology #physicalexam
Myositis and Myopathies
Polymyositis 
 • Progressive, symmetric muscle weakness 
 • Elevated CK, +Anti-Jo, +Anti-Mi2
Dermatomyositis
muscle weakness, rash ... Elevated ESR, Normal ... with temporal arteritis ... Myopathies #myopathy #differential ... diagnosis #comparison #rheumatology
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
Constitutional symptoms, Arthritis ... NPSLE rare, Malar rash ... Discontinuation of causal ... sle #comparison #table ... #rheumatology #
Blood Disorders - Markers and Differential Diagnosis Algorithm 
Acute
 • Myloid (AML) - CD13, CD33, CD34,
- Markers and Differential ... o CML - bcr-able ... Amy Chung, MD, MSc ... Blood #Disorders #hematology ... #Markers #Differential
Gout (Gouty Arthritis) - MSK Radiology
Imaging Findings:
 • Eccentric soft-tissue densities surrounding the third proximal interphalangeal
Gout (Gouty Arthritis ... ) - MSK Radiology ... - **MSK rads ... Differential diagnosis ... #rheumatology
Systemic Lupus Erythematosus - Diagnosis
Manifestations:
 - Arthritis 69%
 - Malar rash 40%
 - Fever 36%
 -
Manifestations: - Arthritis ... 69% - Malar rash ... Nephropathy 16% - Oral ... (aPL) 30-45% Differential ... #rheumatology
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
GPA causes disease ... Maculopapular rash ... reticularis Differential ... • Giant cell arteritis ... #rheumatology
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
Differential Diagnosis ... weeks) Can Be Caused ... Joint #pain #Differential ... #Diagnosis #MSK ... #rheumatology #