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13 Cards in this Set
- Front
- Back
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nocardia ? g+ or g-?
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g+ filaments, breaks up into rods... aerobic and partially acid fast
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2 important species of nocardia
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n. asteroides / brasilensis
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3 distinguishing nocardia features
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aerobic, gram + BRANCHING rods,
partially ACID/FAST |
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reservoir?
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soil and dust
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transmission?
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airborne or traumatic implantation
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pathogensis of nocardia?
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NO known toxins or virulence factors, commonly seen in IMMUNOSUPPRESSED patients
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clinical diseases caused by nocardia?
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nocardiosis--> cavitary bronchopulmonary nocardiosis (asteroides)
- cough,f,dyspnea, lcld or diffse pneumonia w/ CAVITATIONS - hematogenous spread to brain --> brain abscesses |
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cuaneous nocardiosis
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n. brasilnesis ; traumatic implantation
- cellulitis w/ swelling --> draining abscesses w/ GRANULES |
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differential dx PULMONARY
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PULMONARY
tb aspergillosis h.capsulatum b.dermatidis c.immitis p.jirovechi |
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dfferential skin
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tb
m.marinum s.schenkii a.israeli |
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nocardia diagnosis
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sputum culture or pus from a cutaneous lesion
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nocardia RX
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sulfonamides or bactrim
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vignette clues for nocardia
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a.) gram + filamentous bacilli, aerobic, partially acid fast
b.) cavitary bronchopulmonary disease, mycetomas |
