6 results
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Pinpoint areas (less ... infection - RMSF - Henoch ... cryoglobulins • Skin ... #Petechiae #Rash ... #dermatology #physicalexam
Christmas Tree Rash of Pityriasis rosea
 - small oval scaling patches
 - Christmas tree pattern
 -
parallel to lines of skin ... - Differential diagnosis ... nummular eczema, tinea ... #dermatology #photo ... #PhysicalExam
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
Findings: • Petechiae ... Maculopapular rash ... polyangiitis • EGPA • Henoch-Schönlein ... extravascular palisading granulomas ... #dermatology #rash
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 ... arthralgia, arm/leg ... , mucositis • Rash ... often present) Henoch ... purpura (lower legs
The Stages of Syphilis 

Primary Syphilis 
- The chancre lesion is the hallmark of primary syphilis.
Syphilis - Rash ... rashes, including tinea-mimicker ... are ulcerating granuIomas ... on skin, bone, ... Latent #Tertiary #Diagnosis