19 results
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Causes of Erythema ... Mnemonic NO cause ... Sarcoidosis or Lofgren's syndrome ... Giardiasis #Erythema ... #Dermatology #SkinRash
Erythema Nodosum: In this case, E. Nodosum has occured secondary to 
Streptococcal infection.
Photo credit, Josh Fierer,
Erythema Nodosum ... : In this case, ... Photo credit, Josh ... #Dermatology #SkinRash ... #Photo #UCSDH
Hand, Foot, and Mouth Disease: A febrile illness (caused by Coxsackie Virus) associated vesicle formation on
Hand, Foot, and ... febrile illness (caused ... formation on the hands ... Dermatology #Pediatrics #SkinRash ... Vesicle #UCSDH #Photo
Causes of Pseudocellulitis - Differential Diagnosis Framework for Cellulitis Mimics

Cellulitis: Deep skin and subcutaneous fat infection

Pseudo
Causes of Pseudocellulitis ... Angioedema • Sweet syndrome ... Acute bursitis • Erythema ... Polyarthritis nodosum • Erythema ... • Compartment syndrome
Erythema Annulare Centrifugum (EAC),
This is erythema annulare centrifugum (EAC), one of the “figurate erythemas.” These lesions
Erythema Annulare ... EAC), This is erythema ... Most cases are idiopathic ... EAC #clinical #photo ... #dermatology #skinrash
Fever and Rash - Differential Diagnosis Framework
 • Viral: Measles, Infectious Mono (EBV, CMV), Acute HIV,
Zoster, Coxsackie (hand ... diseases, Toxic shock syndrome ... miliaris disseminate, Cellulitis ... Noninfectious: SJS/TEN, Erythema ... , DRESS, Sweet syndrome
Pyoderma Gangrenosum: Autoimmune disorder resulting in a vasculitis which causes slowly progressive 
ulceration of the skin.
vasculitis which causes ... frequently mistaken for cellulitis ... Images #Clinical #Photo ... #Dermatology #SkinRash
Janeway Lesion: Flat, painless, erythematous lesions seen on the palm of this patient's hand. While
frequently associated
this patient's hand ... endocarditis, in this case ... Photo credit, Josh ... Images #Clinical #Photo ... #Dermatology #SkinRash
Mechanic’s Hands in Dermatomyositis

Finally, mechanic’s hands which are common to Anti-synthetase syndrome and another type of
Mechanic’s Hands ... Anti-synthetase syndrome ... typically present with erythema ... #SkinRash #Dermatomyositis ... Dermatology #Clinical #Photo
Drug Reaction with Eosinophilia and Systemic Signs (DRESS Syndrome): Formerly known as drug hypersensitivity reaction, DRESS
represents
Systemic Signs (DRESS Syndrome ... medication (in this case ... #Dermatology #SkinRash ... #DRESS #Syndrome ... Eosinophilia #Legs #Photo