​Dermatology - Hypersensitivity Vasculitis

Dermatology - Hypersensitivity vasculitis Hypersensitivity vasculitis refers to a diverse collection of vasculitides that are linked to an exaggerated immune response to antigens derived from infectious organisms, medications, or other external or interna




​Symptoms and Signs – Differential Diagnosis of Sinus Bradycardia

Symptoms and Signs – Differential Diagnosis of Sinus Bradycardia • Acute myocardial ischemia and infarction • Class I antiarrhythmic agents (e.g., procainamide), class III antiarrhythmic agents (amiodarone, sotalol), clonidine, lithium carbonate • Degener


​Symptoms and Signs – Differential Diagnosis of Brain Neoplasm

Symptoms and Signs – Differential Diagnosis of Brain Neoplasm • encephalomyelitis • Stroke • Primary central nervous system lymphoma • Metastatic tumors • Demyelinating disease: multiple sclerosis, postinfectious • Brain abscess • Abscess/parasitic cyst




​Symptoms and Signs – Differential Diagnosis of Breast Mass

Symptoms and Signs – Differential Diagnosis of Breast Mass • Benign tumors (fibroadenoma, papilloma) • Breast abscess • Duct ectasia • Fat necrosis • Fibrocystic breasts • Hematoma • Malignant neoplasm • Mammary adenosis • Mastitis (acute bacterial mastit


​Symptoms and Signs – Differential Diagnosis of Breath Odor

Symptoms and Signs – Differential Diagnosis of Breath Odor • Sweet, fruity: diabetic ketoacidosis (DKA), starvation ketosis • Musty fish, clover: fetor hepaticus (hepatic failure) • Halitosis: tonsillitis, gingivitis, respiratory infections, Vincent’s ang