13 results
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Rash • Human ... Sarcoidosis • GPA ... Sarcoidosis #dermatology ... #joint #pain #skin ... differential #diagnosis #rheumatology
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
GPA causes disease ... Maculopapular rash ... burning sensation or pain ... #dermatology #rash ... #diagnosis #rheumatology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
purple, hemorrhagic skin ... - EGPA - MPA ... Differential #Diagnosis #hematology ... #rheumatology # ... #nonpalpable #dermatology
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... lesions • Severe pain ... RA, Sjogren's, GPA ... cryoglobulins • Skin ... #dermatology #physicalexam
Palpable Purpura seen in Henoch Schonlein Purpura (HSP, IgA Vasculitis)

55 year old male on tuberculosis treatment
now abdominal pain ... , joint pain involving ... Vasculitis #clinical #photo ... #dermatology #skin ... #rash #physicalexam
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
> PR3 60% • GPA ... tract, and often causes ... mucositis - Rash ... , testes -> pain ... differential #diagnosis #rheumatology
Capnocytophaga Canimorsus Skin Rash

40 M presents w/ N, V, severe epigastric pain. SHx: smoker, drinks 18
severe epigastric pain ... +purpuric rash → ... purpura fulminans ... #Rash #dermatology ... #clinical #photo
Moccasin-variety Tinea Pedis 
70 M chronic scaly feet. Over the years: rash has itched only occasionally;
Over the years: rash ... dermatophytes cause ... skin of inflamed ... type #clinical #photo ... #foot #dermatology
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
tract: Abdominal pain ... , mucositis • Rash ... MPO > PR3 60/ GPA ... tract, and often causes ... Differential #Diagnosis #Rheumatology
Blood Transfusion Reactions

Immune Mediated:
 • Febrile Non-Hemolytic Transfusion Reaction (FNHTR): Most common immune reaction to transfusion.
: Fever, flank pain ... maculopapular rash ... Causes purpura & ... infections with skin ... diagnosis #management #hematology