9 results
Algorithm for Diagnosis of the Petechial / Purpuric Rash

Febrile/Toxic, Palpable: 
 - Meningococcaemia, Disseminated Gonococcal Infection,
/ Purpuric Rash ... Endocarditis, Henoch-SchönIein ... #Purpuric #Petechiae ... #Purpura #Rash ... #Dermatology #Skin
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Diagnosis Algorithm ... infection - RMSF - Henoch ... RA, Sjogren's, GPA ... cryoglobulins • Skin ... #Petechiae #Rash
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
Findings: • Petechiae ... Maculopapular rash ... Differential Diagnosis ... • Henoch-Schönlein ... #dermatology #rash
Pigmented Purpuric Dermatoses (PPD) - Capillaritis

Group of chronic, benign, cutaneous eruptions characterized by the presence of
the presence of petechiae ... skin pigmentation ... characterized by petechiae ... brown tint of the rash ... #differential #diagnosis
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Joint Pain Rash ... infection Malar rash ... vasculitis • Henoch ... Sarcoidosis • GPA ... #differential #diagnosis
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential Diagnosis ... and/or pulmonary capillaritis ... often present • Henoch ... mucositis - Rash ... • ANCA (Dx: GPA
Scurvy (Vitamin C Deficiency) - Diagnosis and Management

Vitamin C is required for hydroxylation of proline residues
Deficiency) - Diagnosis ... integrity of: • Skin ... • Petechiae, purpura ... ecchymoses due to capillaritis ... periodontitis • ITP • Henoch-Schonlein
Moccasin-variety Tinea Pedis 
70 M chronic scaly feet. Over the years: rash has itched only occasionally;
Over the years: rash ... Diagnosis? ... covering the foot, hence ... skin of inflamed ... type #clinical #photo
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
- Differential Diagnosis ... , mucositis • Rash ... ) • Pulmonary capillaritis ... MPO > PR3 60/ GPA ... often present) Henoch