33 results
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Associated with Joint ... Pain Rash ... Malar rash ... • Rheumatic fever ... #rashes #differential
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
acute rheumatic fever ... ), RA, crystal disease ... #rheumatology # ... approach #workup ... #differential #
Fever and Rash - Differential Diagnosis Framework
 • Viral: Measles, Infectious Mono (EBV, CMV), Acute HIV,
Fever and Rash - ... Viral: Measles, Infectious ... gonorrhea, Rickettsial diseases ... Medicine @SCVMCMed #Fever ... #Rash #Differential
Vibrio Vulnificus skin infection
Cirrhosis w/recent consumption of raw oysters w/rapidly evolving rash. 
Vibrio vulnificus part of
Rapid onset of fever ... hemochromatosis, hemolytic anemia ... Diseases Fellowship ... #dermatology #legs ... #clinical #photo
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
Hemolytic Anemia ... inclusions - If infection ... bartonella (oroya fever ... Diagnosis #Algorithm #workup ... #hematology #testing
Extra-articular and Other Conditions Associated with Joint Pain

Eyes
  • Iritis or uveitis - Spondyloarthropathies, Sarcoidosis,
Hyperthyroidism Fever ... • Rheumatic fever ... SLE, Rheumatic fever ... • New murmur, fever ... #pain #differential
Adult-Onset Still's Disease
Clinical triad: Fever, Arthralgia/arthritis, Skin rash ± odynophagia
+ Biological inflammation: Increased neutrophils, Hyperferritinemia, decreased
Clinical triad: Fever ... arthritis, Skin rash ... fraction < 20% Differential ... Diaqnoses: • Infectious ... management #treatment #rheumatology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... - Hemolytic anemia ... SLE) - Viral infections ... mountain spotted fever ... #Diagnosis #hematology
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 ... Acute rheumatic fever ... Effusions: - Hematologic ... Osteochondroma Hematologic
Clinical Features of Systemic Lupus (SLE)
General: Fever (50%), Depression, Fatigue (75%), Weight loss (50%)
Eye: Sjögrens (15%)
Skin
(SLE) General: Fever ... Photosensitivity, Butterfly rash ... phenomenon (20%) Joints ... pain (20%) Renal disease ... ) Blood (75%): Anemia