11 results
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Causes of Erythema ... Drugs (antibiotics ... HepB, HepC Bacterial ... Giardiasis #Erythema ... Differential #Diagnosis #Dermatology
My Patient with Infective Endocarditis (IE) Has Negative Blood Cultures
 - Did they receive antibiotics prior
with Infective Endocarditis ... Did they receive antibiotics ... therapy - Number one cause ... this be a non-bacterial ... Diagnosis #Management #Algorithm
Janeway Lesion: Flat, painless, erythematous lesions seen on the palm of this patient's hand. While
frequently associated
associated with bacterial ... endocarditis, in ... this case, they ... Photo credit, Josh ... #Dermatology #SkinRash
Causes of Erythema Nodosum
Common
 - Idiopathic (up to 55 percent)
 - Infections: streptococcal pharyngitis (28 to
Causes of Erythema ... to 10 percent): antibiotics ... - Bacterial ... malignancies #Erythema ... #Nodosum #Causes
Causes of Isolated Neutropenia - Differential Diagnosis Algorithm
Congenital
Medications
 • Anticonvulsants
 • Antibiotics
 • Antithyroid
 • Antihypertensive
Causes of Isolated ... Differential Diagnosis Algorithm ... Anticonvulsants • Antibiotics ... • Epstein-Barr Virus ... #Causes #Hematology
Herpes Zoster: Herpes virus mediated infection that occurred in this patient receiving chemotherapy 
for an underlying
Zoster: Herpes virus ... vessicles in this case ... superimposed bacterial ... Images #Clinical #Photo ... #Dermatology #SkinRash
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
Encephalitis and Bacterial ... Photophobia • Nausea ... 10 weeks after erythema ... - History of erythema ... stain: Previous antibiotics
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
reactions • Erythema ... gangrenosum • Bacterial ... endocarditis ... Differential #Diagnosis #hematology ... #nonpalpable #dermatology
Nail Disorders secondary to Systemic Diseases
Nail Fold Abnormality
 • SLE
 • Scleroderma
 • Dermatomyositis
Koilonychia - Spoon-shaped
usually painful • Bacterial ... endocarditis ... Systemic #Secondary #dermatology ... Differential #Diagnosis #Algorithm ... #causes
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
warmth, effusion, erythema ... : • Pain • Erythema ... weeks) Can Be Caused ... /Bacteria • Syphilis ... endocarditis