29 results
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Drugs (antibiotics ... , HepC Bacterial ... #Differential # ... Diagnosis #Dermatology ... #SkinRash
Erythema Nodosum: In this case, E. Nodosum has occured secondary to 
Streptococcal infection.
Photo credit, Josh Fierer,
: In this case, ... Streptococcal infection ... Images #Clinical #Dermatology ... #SkinRash #Erythema ... #ENodosum #Photo
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 ... #Causes #Differential
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
Causes of Isolated Neutropenia - Differential Diagnosis Algorithm
Congenital
Medications
 • Anticonvulsants
 • Antibiotics
 • Antithyroid
 • Antihypertensive
Causes of Isolated ... Anticonvulsants • Antibiotics ... Antineoplastic Viral Infection ... • Epstein-Barr Virus ... #Hematology
Causes of Fever of Unknown Origin (FUO) - Differential Diagnosis Algorithm
Neoplasm:
• NHL
• Hodgkin's lymphoma
• Leukemia
• Solid
Causes of Fever ... Origin (FUO) - Differential ... Polyarteritis nodosum ... Recurrent PE Bacterial ... : • HIV • EBV
Kaposis Sarcoma: Darkly pigmented macules caused by this malignancy. Seen most commonly in
patients with HIV infection.

Charlie
pigmented macules caused ... patients with HIV ... infection. ... Images #Clinical #Photo ... #Dermatology #SkinRash
Causes of Pseudocellulitis - Differential Diagnosis Framework for Cellulitis Mimics

Cellulitis: Deep skin and subcutaneous fat infection

Pseudo
- Differential ... avoid unnecessary antibiotics ... inappropriate antibiotic ... Polyarthritis nodosum ... #dermatology #skin
Skin Ulcers by Etiology - Differential Diagnosis Algorithm
Physical:
 • Trauma
 • Pressure
 • Radiation
Vascular:
 • Arterial
Cryoglobulinemia Infectious ... Herpes simplex - Bacterial ... Ulcers #ulcerative #skinrash ... #dermatology #Differential ... Diagnosis #Algorithm #causes
Classification of oral lesions in transplant patients
Infectious:
 • HSV infection
 • VZV virus infection
 • Epstein-Barr
: • HSV infection ... • VZV virus infection ... • Bacterial infections ... abscesses, dental caries ... mouth #diagnosis #differential