10 results
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
GPA causes disease ... Maculopapular rash ... Polyarteritis nodosa • Microscopic ... vasculitis (inflamed blood ... #rheumatology
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... Sjogren's, GPA, EGPA, Microscopic ... : • Complete blood ... cryoglobulins • Skin ... #dermatology #physicalexam
Moccasin-variety Tinea Pedis 
70 M chronic scaly feet. Over the years: rash has itched only occasionally;
Over the years: rash ... dermatophytes cause ... skin of inflamed ... type #clinical #photo ... #foot #dermatology
Sweet Syndrome

Acute febrile neutrophilic dermatosis (Sweets Syndrome) is a skin condition characterized by fever and inflamed
- Rash: multiple ... Causes: - Idiopathic ... : - Biopsy - Microscopic ... neutrophils in the blood ... #oncology
ANTI-MDA5 DERMATOMYOSITIS

Cutaneous manifestations:
• Periorbital heliotrope (blue-purple) rash with edema
• Erythematous rash on the face, or the
(blue-purple) rash ... • Erythematous rash ... onset [33-74%] • Blood ... Dermatomyositis #rheumatology ... #dermatology #diagnosis
Myelodysplastic Syndromes (MDS)

What?
Myelodysplastic syndromes are a group of disorders caused by blood cells that are poorly
just beneath the skin ... Out Secondary Causes ... abnormal under a microscope ... Syndromes #diagnosis #hematology ... #oncology
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
Common Dermatological ... with site, (e.g„ tinea ... - Trunk - Red, blood-filled ... ; pruritis #dermatology ... #rash #differential
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
PR3-ANCA): • Microscopic ... tract, and often causes ... mucositis - Rash ... Large Vessel: Blood ... differential #diagnosis #rheumatology
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
pulses, bruits, or blood ... , mucositis • Rash ... (PR3-ANCA)): Microscopic ... tract, and often causes ... Differential #Diagnosis #Rheumatology
PALM RASHES 
Common features and patterns:
1.	Color:
o	Red or erythematous: Common in inflammatory or allergic reactions.
o	Purple or purpuric:
such as small blood ... occur in chronic skin ... Seen in systemic causes ... disease. 6 Causes ... Fungal Infections (Tinea