15 results
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... Rash - Differential ... lesions • Severe pain ... #Differential # ... #dermatology #physicalexam
Maculopapular - Diagnostic Algorithm
Pathophysiology:
- Catch-all term with a wide range of potential pathophysiologic mechanisms and causative
erythroderma, petechiae ... Ill-appearing, vital sign ... sulfa-drug - Skin pain ... #Diagnosis #Dermatology ... Targetoid #Algorithm #Differential
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
GPA causes disease ... burning sensation or pain ... : • Petechiae ... reticularis Differential ... • Giant cell arteritis
Dermatological semiology of Cutaneous Vasculitis 

Clinicopathologic correlations
 • Purpura, papules, pustules, necrosis: involvement of small vessels
Identification of causes ... (5%): PAN > GPA ... #dermpath #dermatology ... #semiology #signs ... pathology #lesions #differential
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential ... tract, and often causes ... tract: abdominal pain ... purpura: strong sign ... , testes -> pain
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
Hematuria - Differential ... Post-infectious GN - Loin pain ... syndrome: • Flank pain ... hematuria • Signs ... Diagnostic of GN or vasculitis
Rheumatoid arthritis (RA): Extra-articular manifestations
Skin: 
 • Inflammation of skin (esp. over areas of stress) forms
Rheumatoid arthritis ... blood vessels (vasculitis ... inflammation tends to cause ... RheumatoidArthritis #RA #pathophysiology ... #signs #symptoms
IgA Vasculitis – Henoch Scholein Purpura: Pathogenesis and Clinical Findings

 - Infectious Agents - 50% have
Colicky abdominal pain ... periumbilical region), nausea ... Arthralgia's (common), arthritis ... HenochScholeinPurpura #Pathophysiology ... #Diagnosis #Signs
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
- Arthritis Differential ... noninflammatory Signs ... weeks) Can Be Caused ... Joint #pain #Differential ... #Diagnosis #MSK
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... purpura: Strong sign ... tract: Abdominal pain ... tract, and often causes ... involvement, abdominal pain