14 results
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
• Petechiae, Palpable ... lesions (9.4%) • Maculopapular ... rash (6.7%) • ... reticularis Differential ... #dermatology #rash
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
- Differential ... RA, Sjogren's, GPA ... cryoglobulins • Skin ... #Differential # ... Algorithm #Causes #dermatology
Approach to the Rash in a an oncology patient - MINT-C Mnemonic
M - Malignancy: Leukemia cutis,
in a an oncology ... dermatoses #skin ... #Rash #oncology ... #differential # ... MINTC #Mnemonic #dermatology
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Joint Pain Rash ... Crohn's disease Palpable ... Sarcoidosis • GPA ... Sarcoidosis #dermatology ... #rashes #differential
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... purple, hemorrhagic skin ... DIC/TTP/HUS - Hemolytic ... SLE) - Viral infections ... #nonpalpable #dermatology
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
- Differential ... related vasculitis, infections ... Vessel: Petechiae, Palpable ... - GPA Cutaneous ... #dermatology #rheumatology
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... Vasculitis Differential ... to exclude are infections ... , mucositis • Rash ... vesicles, pustules, maculopapular
Algorithm - Approach to the differential diagnosis of the patient presenting with overt glomerular proteinuria. CMV
Approach to the differential ... glomerulonephritis; HUS = hemolytic-uremic ... nose (epistaxis), skin ... alopecia, purpura, palpable ... purpura, maculopapular
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
mucositis - Rash ... to exclude are infections ... scleritis • Palpable ... -> causing palpable ... #rheumatology #classification
Pustular Skin Lesions - Differential Diagnosis Framework

What are pustules?
• Pustules < 5-10 mm + pus
• Material
- Differential ... Dermatophyte infection ... Generalized itchy rash ... #Lesions #Differential ... #Diagnosis #Dermatology