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​Symptoms and Signs – Differential Diagnosis of Malaria
• Brucellosis
• Dengue fever
• Influenza
• Leishmaniasis
• Leptospirosis
• Rickettsial diseases
• Trypanosomiasis
• Typhoid fever
• Urinary tract infection (UTI)
• Viral hepatitis
• Yellow fever
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​Symptoms and Signs – Differential Diagnosis of Malignant Hyperthermia
• Adverse reaction to monoamine oxidase inhibitor or anticholinergic drug
• Central nervous system infection or space-occupying lesion
• Fever
• Heat stroke
• MDMA (ecstasy), cocaine, alcohol withdrawal, or amphetamine use
• Neuroleptic malignant syndrome
• Pheochromocytoma
• Serotonin syndrome
• Strychnine poisoning
• Thyrotoxicosis
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​Symptoms and Signs – Differential Diagnosis of Lymphedema
• Reflex sympathetic dystrophy
• Obstruction from abdominal or pelvic malignant neoplasm
• Myxedema
• Hypoalbuminemia
• Exclude other causes of edema (e.g., cirrhosis, nephrosis, congestive heart failure)
• Chronic venous stasis
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​Symptoms and Signs – Differential Diagnosis of  Lymphangitis
• Group A streptococci
• Mycobacterium kansasii
• Mycobacterium marinum (swimming pool granuloma)
• Nocardia brasiliensis
• Pasteurella multocida
• Sporothrix schenckii (sporotrichosis)
• Staphylococcus aureus
• Wuchereria bancrofti
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​Symptoms and Signs- Differential Diagnosis of Lichen Planus
• Bowen’s disease
• Candidiasis
• Chronic graft-versus-host disease
• Drug eruption
• Leukoplakia
• Lupus
• Psoriasis
• Scabies
• Seborrheic dermatitis
• Secondary syphilis
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​Symptoms and Signs - Lichen Simplex Chronicus
• Atopic dermatitis
• Contact dermatitis
• Insect bite
• Lichen planus
• Nummular eczema
• Psoriasis
• Stasis dermatitis
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​Symptoms and Signs – Differential Diagnosis - Limp
• Abdominal pain (e.g., appendicitis, incarcerated hernia), testicular torsion
• Degenerative joint disease, osteochondritis dissecans, chondromalacia patellae
• Factitious, somatization syndrome
• Joint infection (septic arthritis, osteomyelitis), viral arthritis
• Legg-Calvé-Perthes disease (LCPD)
• Neoplasm (local or metastatic)
• Osgood-Schlatter disease
• Other: diskitis, periostitis, sickle cell disease, hemophilia
• Polio, neuromuscular disorders, Guillain-Barré syndrome, multiple sclerosis (MS)
• Poorly fitting shoes, foreign body in shoe, unequal leg length
• Splinter in foot
• Trauma to extremities, vertebral disk, hips
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