10 results
Erythema Nodosum: In this case, E. Nodosum has occured secondary to 
Streptococcal infection.
Photo credit, Josh Fierer,
Erythema Nodosum ... Streptococcal infection ... #Dermatology #SkinRash ... #Erythema #ENodosum ... #Photo #UCSDH
Necrotizing Fasciitis: Note the extensive edema, erythema, bullae formation, and necrosis in this patient's thigh. At
Necrotizing Fasciitis ... extensive edema, erythema ... at the site of infection ... Images #Clinical #Photo ... #Dermatology #SkinRash
Erythema Annulare Centrifugum (EAC),
This is erythema annulare centrifugum (EAC), one of the “figurate erythemas.” These lesions
Erythema Annulare ... EAC), This is erythema ... the “figurate erythemas ... Most cases are idiopathic ... #Erythema #Annulare
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
Erythemas Summarized ... Erythema ab igne ... Erythema annulare ... • Causes are multiple ... comparison #table #differential
Herpes Zoster: Herpes virus mediated infection that occurred in this patient receiving chemotherapy 
for an underlying
vessicles in this case ... superimposed bacterial skin ... Images #Clinical #Photo ... #Dermatology #SkinRash ... #Shingles
Reactive Skin Rash - Differential Diagnosis Algorithm
Reactive erythematous with various morphology
 • Urticaria - Firm /
Reactive Skin Rash ... lasts <24hrs • Erythema ... nodules on shins • Erythema ... #Reactive #SkinRash ... Diagnosis #Algorithm #causes
Necrotizing Fasciitis: Note the extensive edema, erythema, bullae formation, and necrosis in this patient's thigh. At
Necrotizing Fasciitis ... extensive edema, erythema ... at the site of infection ... Images #Clinical #Photo ... #Dermatology #SkinRash
Causes of Pseudocellulitis - Differential Diagnosis Framework for Cellulitis Mimics

Cellulitis: Deep skin and subcutaneous fat infection

Pseudo
- Differential ... Cellulitis: Deep skin ... Calor, and Rumor are ... Acute bursitis • Erythema ... Polyarthritis nodosum • Erythema
Oral Skin Ulcers - Differential Diagnosis Algorithm
Single Ulcer:
 • Traumatic ulcer
 • Angular ulcer
 • Aphthous
Oral Skin Ulcers ... stomatitis • Erythema ... Herpes simplex infection ... #Oral #mouth #SkinRash ... Diagnosis #Algorithm #causes
Necrotizing Fasciitis: Severe infection which travels in the suprafacial plane. In this instance, the infection
started in
Necrotizing Fasciitis ... several fistulae are ... apparent in the skin ... However, in this case ... Images #Clinical #Photo