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| Brown recluse spider bite |
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| Methicillin-resistant Staphylcoccus aureus |
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Conditions Potentially Misdiagnosed as Bites of a Loxosceles Spider [1] |
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| Infections: |
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Atypical mycobacterial infection: |
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Myobacterium ulcerans |
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M. tuberculosis |
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Bacterial infection: |
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Cutaneous anthrax |
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Gonococcemia |
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Rickettsial disease |
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Staphylococcal |
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Streptococcal |
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Syphilis |
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Tularemia |
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Deep fungal infection: |
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Aspergillosis |
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Cryptococcosis |
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Sporotrichosis |
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Ecthyma |
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Ecthyma gangrenosum |
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Infection with environmental pathogens |
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Parasitic infection |
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Viral infection: |
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Herpes simplex |
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Herpes zoster |
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| Vascular occlusive or venous disease: |
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Antiphospholipid-antibody syndrome |
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Livedoid vasculopathy |
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Small-vessel occlusive arterial disease |
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Venous stasis ulcers |
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| Necrotizing vasculitis: |
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Leukocytoclastic vasculitis |
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Polyarteritis nodosa |
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Takayasu's arteritis |
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Wegener's granulomatosis |
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| Neoplastic disease: |
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Leukemia cutis |
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Lymphoma |
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Primary skin neoplasms: |
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| Chemical, thermal, or traumatic injuries, including factitious injuries |
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| Other conditions: |
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Calcific uremic arteriolopathy |
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Cryoglobulinemia |
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Diabetic ulcer |
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Langerhans'-cell histiocytosis |
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Lymphomatoid papulosis |
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Other arthropod bites |
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Pemphigus vegetans |
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Poison ivy or poison oak |
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Pyoderma gangrenosum |
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Pressure ulcers |
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Radiotherapy |
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Septic embolism |
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[1] Isbister, G.K., Whyte, I.M., 2004. Suspected whitetail
spider bite and necrotic ulcers. Intern
Med J;34:38-44. |
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