16 results
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
GPA causes disease ... Rarely dominate the clinical ... Maculopapular rash ... • Hemorrhagic Bullae ... #dermatology #rash
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... Diagnosis Algorithm ... RA, Sjogren's, GPA ... cryoglobulins • Skin ... #Algorithm #Causes
Secondary Syphilis Rash
Secondary syphilis is the most contagious of all the stages of this disease, and
Rash Secondary ... Skin rash and malaise ... resembling rashes caused ... #Rash #Diagnosis ... #Clinical #Photo
The Stages of Syphilis 

Primary Syphilis 
- The chancre lesion is the hallmark of primary syphilis.
- Rash, pink ... soles in 50% of cases ... have positive serology ... granuIomas on skin ... Latent #Tertiary #Diagnosis
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
nodules, may also see ... skin lesions, LAD ... Tuberculosis • Syphilis ... #causes #radiology ... #neurology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
> PR3 60% • GPA ... tract, and often causes ... mucositis - Rash ... • ANCA (Dx: GPA ... vasculitis, and SLE
Urine Microscopy Instructions
1) Spin fresh urine sample (10-15mL) in a centrifuge for 3-5 minutes - Don't
Instructions 1) Spin ... tube 3) Place one drop ... under lower power (casts ... findings are hard to see ... #diagnosis
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
• They can cause ... - Purpura - Skin ... Cryoglobulins Cause ... Syndrome: • Clinical ... associated vasculitis - GPA
Syphilis - Clinical Manifestations and Treatment

1) Primary Syphilis
 • Direct lesion contact during sex is responsible
Syphilis - Clinical ... responsible for most cases ... weight loss • Skin ... : Rash is the most ... #stages #diagnosis
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
diseases, such as SLE ... , neurologic, and ... , mucositis • Rash ... MPO > PR3 60/ GPA ... tract, and often causes