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13 Cards in this Set
- Front
- Back
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Meningitis Infection:
Pharynx → Lymphatics → Meninges |
Haemophilus influenzae
most common in infants and young children |
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Meningitis Infection:
Middle Ear → Contiguous Ts → Meninges |
S pneumoniae's usual MO
may also enter via hematogenous dissemination from blood |
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Meningitis Infection:
Traumatic Wound → Leaking CSF → Meninges |
S aureus meningitis/abscess
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Meningitis Infection:
Pharynx → Blood → Choroid Plexus → Meninges |
Neisseria meningitidis
transmission via respiratory droplets 5% of general pop aSx carrier w/in nasopharynx Rarely carriers hematogenously disseminate SSx: Petechial Skin Lesions, Waterhouse Friderichsen Sro:rapid hypotension and death |
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Meningitis Infection:
Lungs → Blood → Meninges |
M tb or S pneumo
Mtb presents as chronic meningitis (Marked ↑ protein, slow progression, mild mononuclear infiltrate) S pneumo usually enters via direct invasion from otitis media, presents as bacterial (mild ↑ protein, rapid progressino, PMN infiltrate) |
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S aureus meningitis:
route of infx |
Traumatic Wound → Leaking CSF → Meninges
may also produce abscess via same route. |
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Neisseria
meningitis: route of infx |
Pharynx → Blood → Choroid Plexus → Meninges
transmission via respiratory droplets 5% of general pop aSx carrier w/in nasopharynx Rarely carriers hematogenously disseminate SSx: Petechial Skin Lesions, Waterhouse Friderichsen Sro:rapid hypotension and death |
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S pneumo
meningitis: route of infx |
Middle Ear → Contiguous Ts → Meninges
may also enter via hematogenous dissemination 2° to pneumonia |
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Mtb
meningitis: route of infx |
Lungs → Blood → Meninges
Mtb presents as chronic meningitis (Marked ↑ protein, slow progression, mild mononuclear infiltrate) [a route also used by S pneumo, tho S pn 1° route is direct invasion from middle ear] |
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Haemophilus influenzae
meningitis: route of infx |
Pharynx → Lymphatics → Meninges
most common in infants and young children |
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HSV1 presentation:
1° vs Reactivation |
1° gingivostomatitis: involves most of gums and much or oral mucous membrane
Recurrent: unilateral, area involved 1/10th the size of original; tend to favor facial skin around muscoal orifices |
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CMV reactivation
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interstitial pneumonitis, retinitis, hepatitis, colitis and generalized disease
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At what T cell count are HIV+ pts immunocompromised
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<200
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