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​Symptoms and Signs – Differential Diagnosis of Epstein-Barr Infection
• Toxoplasmosis
• Lymphoma
• Heterophil-negative infectious mononucleosis caused by cytomegalovirus (CMV)
• Bacterial and viral causes of pharyngitis
• Although clinical presentation is similar, CMV more frequently follows transfusion.
• Acute retroviral syndrome of HIV
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​Symptoms and Signs – Differential Diagnosis of Organic Erectile Dysfunction 
• Trauma: pelvic fracture, prostate surgery, penile fracture
• Systemic disease: diabetes mellitus (DM), renal failure, hepatic cirrhosis
• Structural abnormalities: Peyronie’s disease
• Psychogenic causes: depression, performance anxiety, marital conflict
• Neurogenic abnormalities: somatic nerve neuropathy, CNS abnormalities
• Medications: β-blockers, diuretics, antidepressants, H2 blockers, exogenous hormones, alcohol, α-blockers, nicotine abuse, finasteride, others
• Endocrine causes: hyperprolactinemia, hypogonadotropic hypogonadism, testicular failure, estrogen excess
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​Symptoms and Signs – Differential Diagnosis of Genitalia Erosions 
• Squamous cell carcinoma
• Pemphigus vulgaris
• Lichen sclerosus
• Lichen planus
• Intraepithelial neoplasia
• Impetigo
• Extramammary Paget’s disease
• Erythema multiforme
• Candidiasis
• Bullous pemphigoid
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​Symptoms and Signs – Differential Diagnosis of Erysipelas
• Other types of cellulitis
• Necrotizing fasciitis
• Deep venous thrombosis (DVT)
• Contact dermatitis
• Erythema migrans (Lyme disease)
• Insect bite
• Herpes zoster
• Erysipeloid
• Acute gout
• Pseudogout
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​Symptoms and Signs – Differential Diagnosis of  Erythema Multiforme
• Chronic urticaria
• Contact dermatitis
• Drug eruption
• Granuloma annulare
• Lichen planus
• Pemphigus vulgaris
• Pityriasis rosea
• Polymorphic light eruption
• Secondary syphilis
• Serum sickness
• Viral exanthem
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​Symptoms and Signs – Differential Diagnosis of Erythema Nodosum
• Fat necrosis associated with pancreatitis
• Insect bites
• Lupus panniculitis
• Necrobiosis lipoidica
• Post-traumatic ecchymoses
• Scleroderma
• Subcutaneous granuloma
• Vasculitis
• Weber-Christian disease
• α1-Antitrypsin deficiency
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​Symptoms and Signs – Differential Diagnosis of Erythroderma
• Atopic eczema
• Cutaneous T-cell lymphoma
• Drug eruption (sulfonamides, allopurinol, anticonvulsants,penicillins)
• Fungal infection
• Lichen planus
• Norwegian (crusted) scabies
• Pityriasis rubra pilaris
• Seborrheic dermatitis
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​Symptoms and Signs – Differential Diagnosis of  Esophageal Cancer
• Achalasia of the esophagus
• Barrett’s esophagus
• Diffuse esophageal spasm
• Esophageal rings and webs
• Gastroesophageal reflux disease (GERD)
• Scleroderma of the esophagus
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Kembara Xtra 

Facts about medicine and its subtopic such as anatomy, physiology, biochemistry, pharmacology, medicine, pediatrics, psychiatry, obstetrics and gynecology and surgery.