9 results
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Causes of Erythema ... Nodosum - Mnemonic ... cases Drugs (antibiotics ... HepB, HepC Bacterial ... Differential #Diagnosis #Dermatology
Janeway Lesion: Flat, painless, erythematous lesions seen on the palm of this patient's hand. While
frequently associated
associated with bacterial ... endocarditis, in ... Photo credit, Josh ... #Dermatology #SkinRash ... #Endocarditis #
Janeway Lesions: Flat, painless, erythematous lesions seen on the palm of this patient's hand. Frequently
associated with
associated with bacterial ... endocarditis. ... Photo credit, Josh ... #Dermatology #SkinRash ... #Endocarditis #
Causes of Erythema Nodosum
Common
 - Idiopathic (up to 55 percent)
 - Infections: streptococcal pharyngitis (28 to
Causes of Erythema ... Nodosum Common ... to 10 percent): antibiotics ... - Bacterial ... #Nodosum #Causes
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
Erythema ab igne ... classic targetoid lesions ... nodosum • Tender ... of the pustular material ... differential #diagnosis #dermatology
Sweet Syndrome

Acute febrile neutrophilic dermatosis (Sweets Syndrome) is a skin condition characterized by fever and inflamed
gangrenosum - Erythema ... Cellulitis - Erythema ... nodosum - Acral ... erythema - Bacterial ... Syndrome #diagnosis #dermatology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
hemorrhagic skin lesions ... reactions • Erythema ... gangrenosum • Bacterial ... endocarditis ... #nonpalpable #dermatology
Pyoderma Gangrenosum in Ulcerative Colitis- ...left chest (Panel A) and leg (Panel B). The physical examination
from the chest lesion ... were negative for bacterial ... disease after erythema ... nodosum. ... #clinical #photo
HSV Herpetic Whitlow Infection of the Finger
20 F presents with painful finger, treated w/ oral cephalexin
inoculation of virus ... onset of edema, erythema ... Vesicular/pustules kesion ... distinguish from bacterial ... Finger #clinical #photo