9 results
Henoch Schonlein Leg Rash - Palpable Purpura
Purpura: Low Platelets or Vasculitis?
45 years old, seen in our
Leg Rash - Palpable ... later confirmed by skin ... #Rash #clinical ... #photo #dermatology ... #HSP
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
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
centrifugum • A chronic skin ... of necrotizing vasculitis ... • A chronic skin ... (HSV + Mycoplasma ... differential #diagnosis #dermatology
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... Pinpoint areas (less ... RMSF - Henoch Schonlein ... cryoglobulins • Skin ... #dermatology #physicalexam
Vibrio Vulnificus skin infection
Cirrhosis w/recent consumption of raw oysters w/rapidly evolving rash. 
Vibrio vulnificus part of
Hippocrates in 5 BC as foot ... #infection #rash ... #cellulitis #dermatology ... #legs #clinical ... #photo
Sweet Syndrome

Acute febrile neutrophilic dermatosis (Sweets Syndrome) is a skin condition characterized by fever and inflamed
sudden onset of a rash ... - Rash: multiple ... Causes: - Idiopathic ... Leukocytoclastic vasculitis ... Syndrome #diagnosis #dermatology
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
arthralgia, arm/leg ... , mucositis • Rash ... present) Henoch Schonlein ... tract, and often causes ... purpura (lower legs
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
Ankles, lower legs ... dorsal aspect of foot-shoe ... with site, (e.g„ tinea ... ; pruritis #dermatology ... #rash #differential
PALM RASHES 
Common features and patterns:
1.	Color:
o	Red or erythematous: Common in inflammatory or allergic reactions.
o	Purple or purpuric:
inflammation (vasculitis ... occur in chronic skin ... Seen in systemic causes ... (Tinea Manuum): ... #erythema