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Deep Seated Mycoses
Microbiology 1 - Deep Seated Mycoses & Mushrooms
| Question | Answer |
|---|---|
| deep seated mycoses | involves blood, brain & protected organs |
| types of deep seated mycoses | coccidioides immitis, histoplasma capsulatum, pneumocystis jiroveci, filobasciella neoformans |
| coccidioides immitis is | dimorphic |
| coccidioides immitis aka | san joaquin valley fever |
| coccidioides immitis from | dust particles filled w/fungal spores, spores inhaled = flu like illness, often self-limiting, Rx: amphotericin B |
| histoplasma capsulatum causes | histoplasmosis/darling's disease, is dimorphic, mississippi & ohio river valleys |
| histoplasma capsulatum found in | soil mixed w/feces (chicken houses, bat caves) |
| histoplasma capsulatum is | granulomatous lesions in lungs, disseminate to other areas, Rx: amphotericin B |
| pneumocystis jiroveci | formerly P. Carini |
| P. Jiroveci | opportunistic fungi, infects people w/AIDS - more AIDS patients die of this secondary infection |
| P. Jiroveci causes | extrapulmonary infections |
| P. Jiroveci Rx: | combination of trimethoprim & sulfamethoxazole/pentamidine |
| filobasiciella neoformans | formerly C. Neoformans |
| filobasiciella neoformans causes | cryptococcosis |
| filobasiciella neoformans invades | meninges & brain, carried by birds, affects AIDS patients, |
| filobasiciella neoformans Rx | amphotericin B |
| Poisonous mushrooms | aflatoxins & ergotamine |
| aflatoxins | most potent carcingogens, may cause CA of liver, reach humans from food made w/mold-infested grain & peanuts |
| ergotamine | toxic alkoloid produced by ergot-producing mold |
| ergotamine formed by | C. Purpurea & used in drugs to treat migraines |