Microbio- fungi/parasites Flashcards
what does cutaneous mycoses cause
Dermatophytes
What are the 4 types of cutaneous mycoses
Tinea pedis- athletes foot
Tinea corposis- Ringworm- creates lesion with annular ring appearance and periphery of ring is active fungal growth
Tinea capitis- scalp ringworm
Tinea cruris- jock itch
What is subcutaneous mycoses caused by
usually reside in soil and decaying veg
What are the two subcutaneous mycoses
Sporotrichosis- characterized by a ganulomatous ulcer at the puncture site
Chromomycosis- characterized by warty nodules that spread along and develop crusty abcesses
What are the systemic mycoses
Coccidiomycosis
Histoplasmosis
Blasyomycosis
What is Coccidomycosis
Spors that become airborne and enter lungs which form spherules which rupture causing meningitis
What is histoplamosis
may cause acute but relatively benign pulmonary infection (fatal sometimes in those w AIDS)
What is blastomycosis
initially causes pulmonary inf that rarely disseminates but if it does secondary sites include skin and GI tract where they manifest as ulcerated granulomas
What are the opportunistic mycoses (4)
Candidiasis
Cryptococcosis
Aspergillosis
Pneumocytitis jiroveci
What is candidiasis caused by and s/s
Candida albicans
-causes oral thrush, white plaques on oral mucosa, tongue, gums
What is cryptococcosis caused by and what does it cause
caused by cryptococcus neoformans- causes meningitis
What is aspergillosis caused by and s/s
Aspergillus fumigatus
-can range from severe lung inf that travels to brain or milder form; creases aspergilloma that forms in lungs
What does pneumocytitis jiroveci cause
causes severe form of pneumonia and 100% fatal if left untx
What are the two major intestinal protozoal inf + what do they generally cause
Each cause dysentery
Amebic Dysentery (by Entamoeba histolytic)- causes dysentery
Giardiasis (by Giardia lambia)- causes dysentary and in massive inf can inflame duodenal mucosa
What does trichomoniasis cause
Trichomoniasis vaginalis- in females, causes inflammation of the mucosal tissue of the vag, vulva and cervix