215 results
Quick review on streptococcal skin infections. 

Images from dermnet.nz

#diagnosis #clinical #differential #dermatology #skinrash #skin
streptococcal skin infections ... diagnosis #clinical #differential ... #dermatology #skinrash
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 ... #Differential # ... Diagnosis #Dermatology ... #SkinRash
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
splenomegaly Other infections ... Infectious: ... #Brain #differential ... #diagnosis #causes ... #radiology #neurology
Pustular Skin Rash - Differential Diagnosis Algorithm
Pruritic / Scaly / Erythematous lesions, usually poorly demarcated
Acneiform -
/ Erythematous lesions ... borders of lips Infectious ... #Pustular #SkinRash ... #dermatology #Differential ... Diagnosis #Algorithm #causes
Janeway Lesion: Flat, painless, erythematous lesions seen on the palm of this patient's hand. While
frequently associated
Janeway Lesion: ... , erythematous lesions ... endocarditis, in this case ... Clinical #Photo #Dermatology ... #SkinRash #Janeway
CNS Ring-Enhancing Lesions - Differential Diagnosis
 • Infections: Cerebral abscess (bacterial, fungal, parasitic), Neurocysticercosis, Tuberculoma, Cerebral
Ring-Enhancing Lesions ... - Differential ... Diagnosis • Infections ... #Differential # ... Diagnosis #neurology
Reactive Skin Rash - Differential Diagnosis Algorithm
Reactive erythematous with various morphology
 • Urticaria - Firm /
Reactive Skin Rash - Differential ... Multiforme - Target lesions ... #Reactive #SkinRash ... #dermatology #Differential ... Diagnosis #Algorithm #causes
Vascular Skin Lesions - Differential Diagnosis Algorithm
 - Petechiae < 0.2 cm diameter
 - Purpura 0.2
Vascular Skin Lesions ... - Differential ... Vascular #Vasculitis #SkinRash ... #dermatology #Differential ... Diagnosis #Algorithm #causes
Causes of Facial Weakness - Differential Diagnosis Algorithm
Forehead Sparing = Central cause
  - Most commonly
Weakness - Differential ... involved = Peripheral lesion ... Palsy (70-75%), Infection ... Facial #Weakness #Differential ... #neurology #sparing
Causes of Leukocytosis and Leukopenia - Differential Diagnosis
 • Eosinophilia (AEC > 500, hypereosinophilia > 1500):
Causes of Leukocytosis ... and Leukopenia - Differential ... Leukocytosis #Leukopenia #Differential ... #Diagnosis #causes ... #hematology