113 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 ... #Differential # ... Diagnosis #Dermatology ... #SkinRash
Causes of Orthopnea - Differential Diagnosis Framework

 • Fear and Anxiety
 • Pleural Effusion
 • Ascites
Causes of Orthopnea ... - Differential ... lesion: ALS, MS ... , Polio - PNS ... lesion: Brachial
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 - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
CNS Ring-Enhancing ... + toxo IgG • CNS ... 30% present w/ CNS ... #Brain #differential ... #diagnosis #causes
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 Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
Causes of Thrombocytosis ... - Differential ... effect following treatment ... Thrombocytosis #Differential ... Diagnosis #Algorithm #Causes
Pustular Skin Rash - Differential Diagnosis Algorithm
Pruritic / Scaly / Erythematous lesions, usually poorly demarcated
Acneiform -
Pustular Skin Rash - Differential ... / Erythematous lesions ... #Pustular #SkinRash ... #dermatology #Differential ... Diagnosis #Algorithm #causes
Genital Skin Ulcers - Differential Diagnosis Algorithm
Painful:
 • Herpes simplex
 • Haemophilus ducreyi (chancroid)
 • Behcet's
Skin Ulcers - Differential ... Ulcers #ulcerative #skinrash ... #dermatology #Differential ... Diagnosis #Algorithm #causes
Trunk / Sacral Skin Ulcers - Differential Diagnosis Algorithm
Neoplastic
 • Squamous cell carcinoma
 • Basal cell
Skin Ulcers - Differential ... Trunk #Sacral #SkinRash ... #dermatology #Differential ... Diagnosis #Algorithm #causes